LAYER is a playable word

layer Scrabble® Dictionary

verb
layered, layering, layers
to form a layer (a single thickness, coating, or covering)
40 Playable Words can be made from "LAYER"
   2-Letter Words (10 found)
   3-Letter Words (15 found)
   4-Letter Words (11 found)
   5-Letter Words (4 found)