UMBERS is a playable word

umber Scrabble® Dictionary

verb
umbered, umbering, umbers
to color with a brown pigment
60 Playable Words can be made from "UMBERS"
   2-Letter Words (9 found)
   3-Letter Words (21 found)
   4-Letter Words (17 found)
   5-Letter Words (11 found)
   6-Letter Words (2 found)