Origin Story
Hoengjae comes from the Sino-Korean word 橫財 (hoengjae). The character 橫 (hoeng) means horizontal, sideways, or aslant, while 財 (jae) means wealth or money. Together they mean "wealth that came sideways" — riches that did not arrive properly from the front but rolled in unexpectedly from the side. In East Asian culture, 橫 stood for an abnormal direction, as opposed to the normal one (縱, jong — vertical, forward). So words containing 橫 carry a nuance of "unexpected" or "unruly." Hoengpo (橫暴, to be willfully violent) and hoengseolsuseol (橫說竪說, to babble this way and that) belong to the same family.
Interestingly, the English word "windfall" has a similar logic: fruit knocked down by the wind, gained without effort. It is striking that both East and West frame unexpected wealth as something that arrives from an "unusual direction."
Meaning Evolution
How It Is Used
I picked up a gold ring on the street and struck a "hoengjae," a real windfall.
When property prices rose, it turned into a "hoengjae," a windfall for me.
I never expected this project to bring such a "hoengjae," such a windfall.
Related Words
Memory Hook
橫 (sideways) + 財 (wealth): picture a purse of money that rolled in unexpectedly from the side rather than straight ahead.
"Money that comes from the side is more welcome than money that comes from the front."