There are 83 words that end with 'mates'.
Note: These 83 words that end with 'mates' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with imates, emates, omates, amates, mmates, kmates, lmates, nmates, rmates, smates, dmates, pmates, tmates, umates, wmates, ymates.