15-Letter Words Matching ___E_F_________

There are 16 15-letter words that match ___E_F_________. 6 are common words, such as DISENFRANCHISED and DISENFRANCHISES. A rarer one is SUPERFLUIDITIES. 4 words contain a doubled letter.

Full list 16

disenfranchiseddisenfranchisesimperfectnessespaterfamiliasessuperfluousnessunselfishnessesinterferometersinterferometricsuperficialnessunselfconscioushyperfastidioushyperfunctionalinterfraternitymaterfamiliasesnonenforcementssuperfluidities

About this list

Words
16 (6 common words)
Common example
disenfranchised
Rare example
superfluidities
Doubled letters
4
Ending in S
12

Questions

How many 15-letter words matching ___e_f_________ are there?

16. 6 of them are common words.

What is a common example?

DISENFRANCHISED is among the common words in this set.