聿
イチ, イツ, ふで, ここに, ふでづくり
brush, finally, self, relate, follow, here, fast, writing brush radical (no. 129)
JLPT0 G13 S0 F5000
The relevant bronzeware inscription form depicts an implement used to carve characters into wood, bamboo and so on. The character was later reinterpreted as indicating a *hand holding a writing brush*. *State* and *relate* are borrowed meanings.
[Full Kanji Etymology List]