油
- oil, grease, fat;
Etymology
Phono-semantic compound:
水 (물 수, “water”) — semantic, indicating a liquid.
由 (말미암을 유) — phonetic, giving the sound (yóu).
Originally meant a viscous liquid, then specialized to “oil/fat.”
Usage in Korean
石油 (석유) — petroleum, crude oil
食用油 (식용유) — cooking oil
油畫 (유화) — oil painting
潤滑油 (윤활유) — lubricant oil