There are 126 13-letter words that end with 'eness'.
Note: These 126 13-letter words that end with 'eness' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with leness, veness, teness, meness, seness, reness, neness, ueness, ceness, geness, keness, deness, eeness, feness, heness, peness, aeness, ieness, oeness, zeness.
7-letter words end with 'eness' (4)