There are 32 13-letter words that end with 'ably'.
Note: These 32 13-letter words that end with 'ably' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with tably, rably, nably, eably, iably, cably, vably, lably, mably, dably, sably, hably, kably, uably, pably, gably, bably, zably, wably, fably, yably, xably.
6-letter words end with 'ably' (5)