KOWTOW is a playable word

kowtow Scrabble® Dictionary

verb
kowtowed, kowtowing, kowtows
to behave in a servile manner
17 Playable Words can be made from "KOWTOW"
   2-Letter Words (4 found)
   3-Letter Words (9 found)
   4-Letter Words (2 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)