There are 8 13-letter words that start with 'aff'.
| affectability | affectionally |
| affectionless | affectivities |
| affenpinscher | affirmatively |
| affordability | afforestation |
Note: These 8 13-letter words that start with 'aff' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with affi, affe, affl, affr, affo, affa, affu.
5-letter words start with 'aff' (1)