15-Letter Words Start with 'eff'

There are 4 15-letter words that start with 'eff'.

effectivenesses	effectualnesses
efficaciousness	effortfulnesses

Note: These 4 15-letter words that start with 'eff' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with effe, effl, effu, effi, effa, effo, effr, effs.

4-letter words start with 'eff' (1)
6-letter words start with 'eff' (7)
7-letter words start with 'eff' (10)
8-letter words start with 'eff' (19)
9-letter words start with 'eff' (16)
10-letter words start with 'eff' (20)
11-letter words start with 'eff' (15)
12-letter words start with 'eff' (14)
13-letter words start with 'eff' (8)
14-letter words start with 'eff' (6)
15-letter words start with 'eff' (4)