12-Letter Words End with 'ff'

There are 2 12-letter words that end with 'ff'.

antidandruff	quarterstaff

Note: These 2 12-letter words that end with 'ff' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words end with off, uff, iff, aff, eff, wff.

3-letter words end with 'ff' (4)
4-letter words end with 'ff' (29)
5-letter words end with 'ff' (26)
6-letter words end with 'ff' (21)
7-letter words end with 'ff' (36)
8-letter words end with 'ff' (16)
9-letter words end with 'ff' (14)
10-letter words end with 'ff' (5)
11-letter words end with 'ff' (1)
12-letter words end with 'ff' (2)