Words that contain 'et' and end in 'ef'

Sad to say there are only 2 entries possible for this search.

11 letter words

  • utfangethef

13 letter words

  • utfangenethef

How many letters are in the longest word on this page?

How many words can one make using the combination specified?
One could create 2 words using the combination of words that have 'et' in and end with 'ef'.