牙
ガ, ゲ, きば, は, きばへん

tusk, fang, tusk radical (no. 92)

JLPT0 G7 S4 F2067

A depiction of fangs or tusks that mesh with or cross over the bottom teeth (compare 齬 and 顎) → *fang*; *tusk*. Also, *tooth/teeth*.

[Full Kanji Etymology List]