SERIFS is a playable word

serif Scrabble® Dictionary

noun
pl. serifs
a fine line used to finish off the main stroke of a letter
(adjective) serifed, seriffed
54 Playable Words can be made from "SERIFS"
   2-Letter Words (8 found)
   3-Letter Words (18 found)
   4-Letter Words (17 found)
   5-Letter Words (9 found)
   6-Letter Words (2 found)