MATED is a playable word

mate Scrabble® Dictionary

verb
mated, mating, mates
to join as mates (partners in a union)
38 Playable Words can be made from "MATED"
   2-Letter Words (13 found)
   3-Letter Words (14 found)
   4-Letter Words (9 found)
   5-Letter Words (2 found)