TIFFING is a playable word

tiff Scrabble® Dictionary

verb
tiffed, tiffing, tiffs
to have a petty quarrel
22 Playable Words can be made from "TIFFING"
   2-Letter Words (5 found)
   3-Letter Words (9 found)
   4-Letter Words (5 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)