DEEPER is a playable word

deep Scrabble® Dictionary

adjective
deeper, deepest
extending far down from a surface
noun
pl. deeps
a place or thing of great depth
28 Playable Words can be made from "DEEPER"
   2-Letter Words (5 found)
   3-Letter Words (9 found)
   4-Letter Words (11 found)
   5-Letter Words (1 found)
   6-Letter Words (2 found)