ゾウ, ソウ, くら, おさ.める, かく.れる, くらし, くらん, くろう, さし, ざ, ろう

storehouse, hide, own, have, possess

JLPT2 G6 S15 F468

As per # (tall) + 艸 grass/plant → tall piles of crops in a *storehouse* (compare ) → *put in/away*; *hide* → *possess* (← possess the contents of a storehouse).

[Full Kanji Etymology List]