油 (yóu)

oil; fat; grease; petroleum; to apply tung oil, paint or varnish; oily

HSK 3.1 level 2
8 strokes

Etymology

Phonosemantic compound. 氵 represents the meaning and 由 represents the sound.

Shuowen Jiezi

《說文》：“油，水。出武陵孱陵西，東南〔北〕入江。从水，由聲。”

Components

氵 (meaning) — 氵 is a component form of 水.
由 (sound)