RIATAS is a playable word

riata Scrabble® Dictionary

noun
pl. riatas
a lasso
61 Playable Words can be made from "RIATAS"
   2-Letter Words (10 found)
   3-Letter Words (19 found)
   4-Letter Words (15 found)
   5-Letter Words (12 found)
   6-Letter Words (5 found)