入
ニュウ, ジュ, い.る, い.る, い.り, い.れる, い.れ, はい.る, いり, いる, に, の, りり

enter, insert

JLPT5 G1 S2 F56

The relevant oracle bone form of this character depicts a soft, yielding sack into which goods are placed (compare 襄) → *enter*; *put/allow in*; *let in*; *take in*; *hold/accommodate*; *contain*; *carry/stock* (goods); *go/come in*. *Need/require* is a borrowed meaning.

[Full Kanji Etymology List]