CAVIL is a playable word

cavil Scrabble® Dictionary

verb
caviled, caviling, cavils or cavilled, cavilling, cavils
to carp
14 Playable Words can be made from "CAVIL"
   2-Letter Words (4 found)
   3-Letter Words (5 found)
   4-Letter Words (3 found)
   5-Letter Words (2 found)