CITHER is a playable word

cither Scrabble® Dictionary

noun
pl. cithers
cittern
55 Playable Words can be made from "CITHER"
   2-Letter Words (9 found)
   3-Letter Words (17 found)
   4-Letter Words (18 found)
   5-Letter Words (9 found)
   6-Letter Words (2 found)