🌍 English Origins #136
English; black from Old English blæc, from Proto-Germanic *blakaz, "burnt," from the Proto-Indo-European root *bhleg-, "to burn, gleam, shine," which Etymonline ties in turn to the root *bhel- (1), "to shine, flash, burn," the root of bleach; Friday from Old English frīgedæg, "day of Frigg" (see the friday page); the compound Black Friday commonly traced to the New York gold panic of 24 September 1869, the day-after-Thanksgiving sense from Philadelphia police usage attested in 1961; Korean 블랙 프라이데이 is a direct loan, and the government sale event 코리아 블랙프라이데이 of 2015 was renamed 코리아세일페스타 from 2016

Black Friday

/ˌblæk ˈfraɪdeɪ/ — 두 낱말에 다 강세가 있고, 구 전체의 주강세는 Friday에 놓임
블랙 프라이데이; 미국 추수감사절 다음 날의 대규모 할인 판매일; (역사) 1869년 9월 24일 뉴욕 금 시장 공황의 날
Black Friday means the Friday after the American Thanksgiving, the day on which the year-end sales begin. The origin of the name is a term of the Philadelphia police, attested in 1961. Q: Why is it a "black" Friday? A: Because the Philadelphia police called the day Black Friday for the shopping crowds and the traffic that made it a hard day of work. A record of 1961 already says it had become customary for officers to call the post-Thanksgiving days Black Friday and Black Saturday, and the merchants who tried to rename it Big Friday failed. The phrase itself is older: Friday 24 September 1869, when the gold corner of Jay Gould and James Fisk collapsed the New York gold price, earned the name first. English has long put black on days of disaster, Black Thursday and Black Tuesday in 1929 and Black Monday in 1987, and Black Friday alone turned the meaning over and became the name of a festival. The explanation that retailers' ledgers go from red to black that day is first found in print in the Philadelphia Inquirer of November 1981, an explanation attached afterward. As the previous page showed, Friday is Old English frīgedæg, the day of Frigg, and black is Old English blæc. The American Thanksgiving of 2026 falls on Thursday 26 November, and Black Friday is Friday 27 November.
✍️ ONGO · 2026-11-04 · 5 min read

Black Friday (블랙 프라이데이; 미국 추수감사절 다음 날의 대규모 할인 판매일; (역사) 1869년 9월 24일 뉴욕 금 시장 공황의 날) comes from English; black from Old English blæc, from Proto-Germanic *blakaz, "burnt," from the Proto-Indo-European root *bhleg-, "to burn, gleam, shine," which Etymonline ties in turn to the root *bhel- (1), "to shine, flash, burn," the root of bleach; Friday from Old English frīgedæg, "day of Frigg" (see the friday page); the compound Black Friday commonly traced to the New York gold panic of 24 September 1869, the day-after-Thanksgiving sense from Philadelphia police usage attested in 1961; Korean 블랙 프라이데이 is a direct loan, and the government sale event 코리아 블랙프라이데이 of 2015 was renamed 코리아세일페스타 from 2016: Black Friday means the Friday after the American Thanksgiving, the day on which the year-end sales begin. The origin of the name is a term of the Philadelphia police, attested in 1961. Q: Why is it a "black" Friday? A: Because the Philadelphia police called the day Black Friday for the shopping crowds and the traffic that made it a hard day of work. A record of 1961 already says it had become customary for officers to call the post-Thanksgiving days Black Friday and Black Saturday, and the merchants who tried to rename it Big Friday failed. The phrase itself is older: Friday 24 September 1869, when the gold corner of Jay Gould and James Fisk collapsed the New York gold price, earned the name first. English has long put black on days of disaster, Black Thursday and Black Tuesday in 1929 and Black Monday in 1987, and Black Friday alone turned the meaning over and became the name of a festival. The explanation that retailers' ledgers go from red to black that day is first found in print in the Philadelphia Inquirer of November 1981, an explanation attached afterward. As the previous page showed, Friday is Old English frīgedæg, the day of Frigg, and black is Old English blæc. The American Thanksgiving of 2026 falls on Thursday 26 November, and Black Friday is Friday 27 November. Its root sense is "Black, dark," from Proto-Germanic *blakaz, "burnt," traced to Proto-Indo-European *bhleg-, "to burn, shine" (Etymonline). Bleach descends from the same older root *bhel-".

01

Origin Story

Era
The words: Old English blæc, "black, dark," from Proto-Germanic *blakaz, "burnt," from Proto-Indo-European *bhleg-, "to burn, gleam, shine, flash," which Etymonline ties in turn to the root *bhel- (1), "to shine, flash, burn," from which bleach, "to make white," also descends; Friday from Old English frīgedæg, "day of Frigg" (see the friday page). The history: Friday 24 September 1869, when the gold corner of Jay Gould and James Fisk collapsed and the New York gold price fell, the day history.com calls the first recorded use of Black Friday (London had its own Black Friday on 11 May 1866, and Friday the 13th was also called Black Friday); Black Thursday 24 October and Black Tuesday 29 October 1929, the opening of the Great Depression; a column of November 1951 in the trade journal Factory Management and Maintenance (M. J. Murphy, p. 137) using Black Friday for post-Thanksgiving absenteeism, "Friday-after-Thanksgiving-itis" (found by Bonnie Taylor-Blake); Public Relations News in 1961, "it became customary for officers to refer to the post-Thanksgiving days as Black Friday and Black Saturday," the Philadelphia police term for traffic, and the merchants' failed Big Friday; a Philadelphia print item of January 1966 presenting the day as the name the Philadelphia Police Department had given to the Friday after Thanksgiving (as cited by Ben Zimmer; original wording not retrieved); the New York Times carrying the Philadelphia usage nationwide on 29 November 1975 (Gordon S. White's Army-Navy game report); spread to other cities in the 1970s and 1980s, not yet in common use nationwide as late as 1985; the "red to black" gloss first found in the Philadelphia Inquirer of 28 November 1981, which history.com calls inaccurate; Black Monday 19 October 1987; national currency by the 1990s; in Korea the government-led Korea Black Friday of 1 to 14 October 2015, renamed Korea Sale Festa from 2016; and in 2026 Thanksgiving on Thursday 26 November, Black Friday on Friday 27 November, Cyber Monday on Monday 30 November

Black Friday means the Friday after the American Thanksgiving, the day on which retailers begin their big sales together. Ask where the name came from and the answer is in the street, not in the ledger. Q: Why is it a "black" Friday? A: Because the Philadelphia police called the day Black Friday for the shopping crowds and the traffic that made it a hard day of work. The words first. The previous page showed that Friday is Old English frīgedæg, the day of Frigg, the goddess who took the place of Venus in the Roman week. Black is Old English blæc, which Etymonline traces through Proto-Germanic *blakaz, "burnt," to the Proto-Indo-European root *bhleg-, "to burn, gleam, shine, flash." Etymonline ties that root in turn to *bhel- (1), "to shine, flash, burn," and derives bleach, "to make white," from the same *bhel-, so black and white parted from one older stem. The connecting notions, the same dictionary adds, are perhaps "fire" (bright) and "burned" (dark), and it quotes the Oxford English Dictionary that in Middle English it is often doubtful whether blak means "black" or "pale." Then the history. The day most often named as the first recorded Black Friday in English is Friday 24 September 1869. Jay Gould and James Fisk tried to corner the New York gold market, the corner failed, the price of gold collapsed, and the day was called Black Friday. London had its own Black Friday on 11 May 1866, and Friday the 13th has also been called Black Friday, but the one of 1869 is the best known. English has long put black on days of disaster. Thursday 24 October and Tuesday 29 October 1929 opened the Great Depression and are remembered as Black Thursday and Black Tuesday; the crash of Monday 19 October 1987 is Black Monday. All of them are names for collapse. Now Philadelphia. The day after Thanksgiving got the name from the mouths of police officers. A newsletter of 18 December 1961, Public Relations News, preserves the sentence: "it became customary for officers to refer to the post-Thanksgiving days as Black Friday and Black Saturday" (found by Bonnie Taylor-Blake and reported by Ben Zimmer). It was an unwelcome name given by the police, who, as the newsletter puts it, found the resulting traffic jams an irksome problem. Philadelphia merchants disliked the sound of it and, on the advice of the deputy city representative Abe S. Rosen, tried Big Friday instead, and Big Friday did not take. A Philadelphia print item of January 1966, found by Bonnie Taylor-Blake and cited by Ben Zimmer, introduces the day as the name the Philadelphia Police Department had given to the Friday after Thanksgiving. Earlier still, in November 1951, a column in the trade journal Factory Management and Maintenance used Black Friday for the mass sick leave of the Friday after Thanksgiving, which it called "Friday-after-Thanksgiving-itis": the shop is half empty "when the 'Black Friday' comes along" (found by Bonnie Taylor-Blake). That is absenteeism, not shopping, and Merriam-Webster dates the first known use of the shopping sense to 1961. Whether it was absence from the factory or congestion in the street, the first Black Friday meant a hard day for somebody. The name stayed in Philadelphia for a while and then spread. On 29 November 1975 the New York Times, in a report on the Army-Navy game, told a national readership that Philadelphia police and bus drivers call the day Black Friday, and the term spread to other cities through the 1970s and 1980s. Even in 1985 it was not yet in common use nationwide, and by the 1990s, as history.com and the Harvard Business School historian Nancy Koehn put it, it had gone national. The meaning turned over in between. On 28 November 1981 the Philadelphia Inquirer asked why the day was called Black Friday and quoted Grace McFeeley of Cherry Hill Mall: because it is a day retailers make profits, black ink. That is the first place the red-to-black explanation has been found in print. History.com calls this explanation inaccurate, and Merriam-Webster, which dates the first known use of this sense to 1961, adds that its origin "is not known for certain." By order of attestation the police term comes first and the ledger story is an explanation attached afterward, but that explanation is what changed the sound of the name. Once the black of disaster was read as the black of a ledger, Black Friday alone, among names shaped like Black Thursday and Black Monday, became the name of a festival. The story crossed the sea. In Korea a government-led Korea Black Friday ran from 1 to 14 October 2015 and was renamed Korea Sale Festa from 2016. Urimalsaem, the open Korean dictionary, glosses 블랙 프라이데이 as the day after the American Thanksgiving, "the last Thursday of November," and lists a separate entry for the Korean edition (the American statute says the fourth Thursday, so the gloss slips in years with five); the Standard Korean Dictionary has no entry yet. In Korean the loanword is written with a space, 블랙 프라이데이, under the transcription rules, and often typed without one, 블랙프라이데이, in a search box. The dates for 2026: the American Thanksgiving falls on Thursday 26 November, Black Friday on Friday 27 November, and the following Monday, 30 November, is Cyber Monday. Today the phrase reaches past the United States to the sales that shops and online stores in Britain, Europe, and Korea hold in the same week, and what was a day has in many places become a week or a month. Friday is the day of Frigg, and the black in front of it was once the color of a hard shift as the police saw it. Now it is the color of the line outside the store. The month into which this sale runs on, December, is the next word.

Black and white are said to have parted from one root. Etymonline's account that black and bleach both descend from the older root *bhel- writes one scene from its two ends: a thing shines while it burns and is black when the burning is done. Black Friday has two ends of the same kind. In the gold market of 1869 and the stock market of 1929, black was the color of collapse, and to the Philadelphia police it was the color of a jammed street. Once that color was reread as the black of a ledger in profit, the same phrase became the name of a sale. If the Friday of the previous page was a day on which a Roman goddess was reread as a Germanic one, Black Friday is a day on which the policeman's black was reread as the merchant's. The word did not change; the reader did.

📚 Sources
  • Public Relations News 1961-12-18 · Factory Management and Maintenance 1951-11 · Bonnie Taylor-Blake · Ben Zimmer
    추수감사절 다음 날 뜻의 문증: Public Relations News 1961년 12월 18일 2쪽 "For downtown merchants throughout the nation, the biggest shopping days normally are the two following Thanksgiving Day. Resulting traffic jams are an irksome problem to the police and, in Philadelphia, it became customary for officers to refer to the post-Thanksgiving days as Black Friday and Black Saturday. … He recommended adoption of a positive approach which would convert Black Friday and Black Saturday to Big Friday and Big Saturday."(He = 시 부대표 Abe S. Rosen; Barry Popik이 Google Books 스캔을 전사한 본문을 2026-11-04 로빈이 Jina 경유 대조). 발굴 Bonnie Taylor-Blake, 소개 Ben Zimmer "The Origins of Black Friday"(Vocabulary.com 2011-11-25)·Language Log(Mark Liberman 2011-11-25, "reporting on research by Bonnie Taylor-Blake"). Popik 전사에 따르면 'Big Friday'는 1957년부터 펜실베이니아 신문에 보이고 1966-11-25 Inquirer 1면 머리기사도 "'Big Friday' Jams Midcity"라 적어, 개명 권고는 1961 소식지의 서술. 1966년 1월 인쇄물의 자구는 #135 friday 글 sources 에 기재되어 있으나 이번 회차 원문 미회수(클로버 대조: Language Log p=4335 에도 해당 자구 없음) — 본문은 인용부호 없이 간접 서술, "지머 소개"로 귀속. 1951년: M. J. Murphy, "Tips to Good Human Relations for Factory Executives," Factory Management and Maintenance 109(11), p.137, November 1951 — "'Friday-after-Thanksgiving-itis' is a disease second only to the bubonic plague in its effects. At least that's the feeling of those who have to get production out, when the 'Black Friday' comes along. The shop may be half empty, but every absentee was sick—and can prove it."(Taylor-Blake ADS-L 2009-08-04 게시물·Popik 전사 일치). 1961-12-01 Shortsville-Manchester Enterprise(로체스터) "the day all city police call 'Black Friday'"도 필라델피아 밖 용례(Popik).
  • Black Friday (1869) · Philadelphia Inquirer 1981-11-28 · history.com · Merriam-Webster
    en.wikipedia "Black Friday (1869)" 서두(MediaWiki API, 2026-11-04): "On September 24, 1869, a gold panic broke out in the United States, triggering a financial crisis. The panic, which became known as Black Friday, was the result of a conspiracy between two investors, Jay Gould, later joined by his partner James Fisk, and Abel Corbin". 1869-09-24 = 금요일(python datetime). history.com(Sarah Pruitt, 2015-11-23 게재·2026-09-09 갱신) "The first recorded use of the term 'Black Friday' was applied not to post-Thanksgiving holiday shopping but to a financial crisis: specifically, the crash of the U.S. gold market on September 24, 1869" — 'first'는 history.com의 주장이고 13일의 금요일을 Black Friday라 부른 관행(1941 Boston Globe 헤드라인)도 있어 본문은 "가장 이른 기록으로 흔히 꼽히는"으로 완화. 적자→흑자 설: history.com "this version of Black Friday's origin is the officially sanctioned—but inaccurate—story behind the tradition"; 최초 지면은 Philadelphia Inquirer 1981-11-28 7-B면 Craig Stock 기사 "If the day is the year's biggest for retailers, why is it called Black Friday? / Because it is a day retailers make profits—black ink, said Grace McFeeley of Cherry Hill Mall."(Popik 전사; WGBH 2015-11-25 Taylor-Blake 인용 "That explanation doesn't show up until the early 1980s") — history.com의 "late 1980s"와 상충하므로 1차 자료가 특정된 1981년을 채택. 확산: Language Log "spreading to other cities in the 1970s and '80s", history.com "as recently as 1985, it wasn't in common use nationwide", WGBH(Nancy Koehn) "by the 1990s Black Friday had gone national". Merriam-Webster(2026-11-04 Jina): "the Friday immediately following Thanksgiving Day that is considered by retailers to mark the beginning of the holiday shopping season" · "First Known Use 1961" · "The origin of Black Friday in this sense is not known for certain."
  • Etymonline — black · bleach · 1975 뉴욕타임스 · Black Thursday/Tuesday/Monday
    Etymonline black (adj.)(WebSearch 스니펫, 본문은 Cloudflare 차단): "Middle English blak, from Old English blæc 'absolutely dark, absorbing all light, of the color of soot or coal,' reconstructed to be from Proto-Germanic *blakaz 'burned'" · PIE *bhleg- "to burn, gleam, shine, flash"를 다시 *bhel- (1)에 연결 · "The same root produced Middle English blake 'pale,' from Old English blac 'bright, shining, glittering, pale;' the connecting notions being, perhaps, 'fire' (bright) and 'burned' (dark)" · OED 인용 "it is often doubtful whether blac, blak, blake, means 'black, dark,' or 'pale, colourless, wan, livid'" · "The usual Old English word for 'black' was sweart". bleach (v.): 고대영어 blæcan "to make white by removing color, whiten" ← PIE *bhel- (1) "to shine, flash, burn," also "shining white" — black과 bleach는 *bhel- (1) 층위에서 만남(*blakaz 직접 공유 아님). blank은 이번 회차에 Etymonline 자구 미회수라 본문에서 제외. 1975 NYT: Language Log "The earliest example in the New York Times archive seems to be Gordon S. White, 'Army vs. Navy: A Dimming of Splendor', 11/29/1975"(원문 재인용 "Philadelphia police and bus drivers call it 'Black Friday'"). Black Thursday 1929-10-24(목)·Black Tuesday 1929-10-29(화): en.wikipedia "Wall Street crash of 1929" 서두 "October 24, 1929, known as 'Black Thursday' … October 29, 1929, or 'Black Tuesday'"; Black Monday 1987-10-19(월): en.wikipedia "Black Monday (1987)" 서두 "stock market crash on Monday, October 19, 1987"(MediaWiki API 2026-11-04, 요일은 python datetime 실측).
  • 코리아 블랙프라이데이 2015 · 코리아세일페스타 2016 · 우리말샘 · 표준국어대사전 · 2026 날짜
    산업통상자원부 해명자료(2015-11) 스니펫 "지난 10월 정부 주도하에 추진된 '코리아 블랙프라이데이'"; 뉴시스 2018-10-08 보도(산업부 자료 인용) 2015년 10월 1~14일 참여업체 22곳 매출 전년 동기 대비 20.7% 증가; 산업일보(kidd.co.kr) "2015년 코리아 블랙프라이데이를 처음 개최한 데 이어 2016년부터는 이름을 코리아세일페스타로 바꾸고 이어가고 있다" — 보도자료 PDF 원문은 미열람이라 본문은 수치 없이 날짜·개칭만 적음. 우리말샘(opendict.korean.go.kr, 2026-11-04 curl, 총 2건): 「블랙^프라이데이(Black Friday)」『경제』 "미국에서 11월 마지막 목요일인 추수 감사절의 다음 날. 전통적으로 연말 쇼핑 시즌을 알리는 시점이자 연중 최대의 쇼핑이 이루어지는 날이다." · 「한국판^블랙^프라이데이」 "2015년 10월에 우리나라에서 열린 쇼핑 할인 행사. 미국의 블랙 프라이데이를 본떠 만들었으며…" — 사전 자구의 "마지막 목요일"은 미국 연방법의 넷째 목요일과 어긋날 수 있어 본문에 괄호로 적음. 표준국어대사전(stdict) "블랙프라이데이 찾기 결과 (총 0 개)". 검색 문형(2026-11-04 Google·Naver 자동완성 실측): Naver "블랙프라이데이 뜻" 6위, 두 엔진 모두 기간·날짜·언제 수요 우세, "유래"는 접두 입력 시에만 노출 — 1차 키워드 "블랙프라이데이 뜻", 날짜 1문장을 서두에 둠. 추수감사절 2026-11-26(목)·Black Friday 2026-11-27(금)·Cyber Monday 2026-11-30(월)은 date·python 실측(발행일 기준 D-23).
02

Word Evolution

1
Old English
blæc
"Black, dark," from Proto-Germanic *blakaz, "burnt," traced to Proto-Indo-European *bhleg-, "to burn, shine" (Etymonline). Bleach descends from the same older root *bhel-
2
24 September 1869
Black Friday
The New York gold panic. The gold corner of Jay Gould and James Fisk collapses and the price falls. The day most often named as the first recorded Black Friday in English
3
1929 and 1987
Black Thursday · Black Tuesday · Black Monday
24 and 29 October 1929, which opened the Great Depression, and the crash of 19 October 1987. Black plus a weekday names a disaster
4
1951
Black Friday (결근)
A trade journal, Factory Management and Maintenance, uses Black Friday for post-Thanksgiving absenteeism in November 1951 (found by Bonnie Taylor-Blake). Absence, not shopping
5
Philadelphia, 1961 and 1966
Black Friday (교통)
Attested in December 1961: officers customarily call the post-Thanksgiving days Black Friday and Black Saturday. The merchants' Big Friday fails. A 1966 print item calls it the name the Police Department has given
6
1975 to the 1990s
Black Friday (세일)
The New York Times carries the usage to a national readership on 29 November 1975; it spreads to other cities through the 1970s and 1980s and goes national by the 1990s. The "red to black" gloss is first found in the Philadelphia Inquirer of November 1981, and a name for disaster turns into a name for a festival
7
2015 to 2026
블랙 프라이데이 · Friday 27 November
Korea Black Friday of 1 to 14 October 2015 and Korea Sale Festa from 2016. In 2026 Thanksgiving falls on Thursday 26 November, and the day after, Friday 27 November, is Black Friday
03

Words from the Same Root

04

Memory Hook

Black Friday = "the police officers' black Friday." The gold panic of 1869 used the name first, the day-after-Thanksgiving sense comes from the Philadelphia police term for traffic attested in 1961, and "red to black" is a gloss attached later. The order is "gold panic, then police, then ledger." Add the account that black and bleach share an older root, and the black Friday has become a day of sales that gleams white. In one line: "The police named it, the merchants reread it."

""To the police it was the color of a jammed street, to the merchant the black of a ledger in profit: two readers of the same word moved one Friday from a day of disaster to a day of festival.""

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