内
ナイ, ダイ, うち, いと, ただ, ち, のち

inside, within, between, among, house, home

JLPT3 G2 S4 F44

The relevant oracle bone form of this character is a roof + 入# (place inside) → place objects *inside/within* a storehouse → *home*; *put in*; *among*; *between*.

[Full Kanji Etymology List]