PRILLS is a playable word

prill Scrabble® Dictionary

verb
prilled, prilling, prills
to convert into pellets
26 Playable Words can be made from "PRILLS"
   2-Letter Words (4 found)
   3-Letter Words (9 found)
   4-Letter Words (8 found)
   5-Letter Words (4 found)
   6-Letter Words (1 found)