某
- someone;
- a certain person;
- anonymous reference;
Etymology
Compound of 木 (나무 목, “tree”) + 甘 (달 감, “sweet”).
Originally meant plum tree.
Later borrowed (假借) for the abstract sense “a certain, someone, anonymous person”.
The botanical meaning was taken over by 梅 (매, plum tree).
Usage in Korean
某人 (모인) — someone, a certain person
某處 (모처) — a certain place
某日 (모일) — a certain day
某事 (모사) — a certain matter
김某씨 — Mr. Kim So-and-so (anonymous individual, name concealed)
Words that derived from 某
Additional notes
Still widely used in classical Chinese and formal contexts, though in modern Korean journalism often replaced by A씨, B씨 for anonymity.