Words Containing FFE and Ending in N

Making a list of words with FFE that end in N? Sounds fun. Also sounds pretty specific. A list like that could go a long way, we're sure. This complete word list is tailored to your search parameters, whether they are words with FFE or words that end in N. Or both, obviously.

15 letter words2 Words
deafferentation
differentiation
14 letter words1 Word
decaffeination
12 letter words2 Words
disaffection
effectuation
11 letter words2 Words
affectation
sufferation
9 letter words2 Words
affection
unstiffen
7 letter words2 Words
caffein
stiffen