SINEWS is a playable word

sinew Scrabble® Dictionary

verb
sinewed, sinewing, sinews
to strengthen
39 Playable Words can be made from "SINEWS"
   2-Letter Words (8 found)
   3-Letter Words (12 found)
   4-Letter Words (12 found)
   5-Letter Words (5 found)
   6-Letter Words (2 found)