所 (suǒ)

actually; place; classifier for houses, small buildings, institutions

HSK 3.1 level 3
8 strokes

Etymology

Origin unclear. 戶 represents the sound.

Shuowen Jiezi

《說文》：“所，伐木聲也。从斤，戶聲。”

Components

戶 (sound)
斤 (unknown) — The original purpose of this component is unclear.