15-Letter Words Matching E____________S_

There are 18 15-letter words that match E____________S_. 2 are common words, such as ENDOCRINOLOGIST and EXPEDITIOUSNESS. A rarer one is EXHAUSTLESSNESS. In this set, N is the most frequent open letter (17 words). 9 words contain a doubled letter.

Full list 18

endocrinologistexpeditiousnessecclesiasticismefficaciousnessentrepreneurismepiscopalianismexperientialismexperimentalismexperimentalistextemporarinessemancipationistemotionlessnessenantiomorphismequalitarianismeverlastingnessexaggeratednessexceptionalnessexhaustlessness

About this list

Words
18 (2 common words)
Common example
endocrinologist
Rare example
exhaustlessness
Doubled letters
9
Ending in S
8
Most frequent letter
N (17)

Questions

How many 15-letter words matching e____________s_ are there?

18. 2 of them are common words.

What is a common example?

ENDOCRINOLOGIST is among the common words in this set.