SEISIN is a playable word

seisin Scrabble® Dictionary

noun
pl. seisins
seizin
23 Playable Words can be made from "SEISIN"
   2-Letter Words (6 found)
   3-Letter Words (7 found)
   4-Letter Words (5 found)
   5-Letter Words (3 found)
   6-Letter Words (2 found)