UPTHROW is a playable word

upthrow Scrabble® Dictionary

verb
upthrew, upthrown, upthrowing, upthrows
to throw upward
74 Playable Words can be made from "UPTHROW"
   2-Letter Words (11 found)
   3-Letter Words (32 found)
   5-Letter Words (7 found)
   7-Letter Words (1 found)