SOURER is a playable word

sour Scrabble® Dictionary

adjective
sourer, sourest
sharp or biting to the taste
verb
soured, souring, sours
to make or become sour
46 Playable Words can be made from "SOURER"
   2-Letter Words (8 found)
   3-Letter Words (14 found)
   4-Letter Words (16 found)
   5-Letter Words (6 found)
   6-Letter Words (2 found)