Origin Story
Many people explain "haengjuchima" by tying it to the Battle of Haengju. The story goes that when General Gwon Yul fought at Haengju Fortress in 1593, women carried stones to the soldiers in their skirts, and so that apron-skirt came to be called "haengjuchima." It sounds plausible, but it does not hold up. The battle took place in 1593, yet an older form of the word "haengju" already appears in Choe Sejin's Hunmong-jahoe of 1527 — a full sixty-six years earlier. In other words, the word existed long before the war ever broke out. Scholars trace it instead to a term for a wiping cloth, or to the skirt worn by a "haengja" (行者), the attendant who cooked at a Buddhist temple. The "haengju" of the fortress and the "haengju" of the apron merely sound alike; their roots are entirely different.
Assuming that words which sound alike must share a meaning — and then inventing a tidy backstory for them — is the hallmark of folk etymology. The apron legend spread all the more widely because it was wrapped in a patriotic tale, yet the dates in the historical record flatly overturn it.
Meaning Evolution
How It Is Used
Mother came out to greet us, wiping her hands on her apron.
There's something heartwarming about her bustling around the kitchen in her apron.
I always thought "haengjuchima" came from the Battle of Haengju — turns out it didn't.
Related Words
Memory Hook
Just remember one fact — the word predates the battle by sixty-six years — and the Battle of Haengju legend falls apart on its own.
"The word was born before the war, so the apron never came from the fortress."