HYPERER is a playable word

hyper Scrabble® Dictionary

adjective
hyperer, hyperest
very excited
noun
pl. hypers
one that hypes
40 Playable Words can be made from "HYPERER"
   2-Letter Words (6 found)
   3-Letter Words (17 found)
   4-Letter Words (10 found)
   5-Letter Words (5 found)
   6-Letter Words (1 found)
   7-Letter Words (1 found)