SASTRUGA is a playable word

sastruga Scrabble® Dictionary

noun
pl. sastrugi
a ridge of snow formed by the wind in polar regions
99 Playable Words can be made from "SASTRUGA"
   2-Letter Words (8 found)
   3-Letter Words (27 found)
   6-Letter Words (7 found)
   8-Letter Words (1 found)