噛合う[kamiau] to gear (engage) with
噛み合せる[kamiawaseru] to clench (teeth)
噛砕く[kamikudaku] to crunch
噛殺す[kamikorosu] to stifle a smile, yawn, etc.
噛熟す[kamikonasu] to chew

噛み切る[kamikiru] to bite off
噛締める[kamishimeru] to chew thoroughly
噛付く[kamitsuku] to bite (at)
噛分ける[kamiwakeru] to taste
噛む[kamu] to bite

雁爪[ganzume] Japanese rake
糸爪[hechima] sponge gourd
爪で拾って箕で零す[tsumedehirottemidekobosu] penny wise and pound foolish
爪痕[tsumeato] fingernail mark
爪先[tsumasaki] tiptoe

爪先で歩く[tsumasakidearuku] to tiptoe
爪弾き[tsumahajiki] black sheep (of a family)
爪楊枝[tsumayouji] toothpick
爪立ち[tsumadachi] standing on tiptoes

一癖[hitokuse] trait
飲酒癖[inshuheki] alcoholic addiction
奇癖[kiheki] strange habit
癖者[kusemono] ruffian
潔癖[keppeki] fastidiousness

口癖[kuchiguse] way of saying
習癖[shuuheki] (bad) habit
常用癖[jouyouheki] addiction
性癖[seiheki] disposition
盗癖[touheki] kleptomania