14-Letter Words Matching E_____R_______

There are 13 14-letter words that match E_____R_______. 4 are common words, such as ECCENTRICITIES and ENTERPRISINGLY. A rarer one is ENDOPARASITISM. In this set, I is the most frequent open letter (13 words). 2 words contain a doubled letter.

Full list 13

eccentricitiesenterprisinglyequestrianismsexpropriationsendocarditisesephemeralitiesethnographicalexasperatinglyexhilaratinglyexothermicallyextraordinaireechocardiogramendoparasitism

About this list

Words
13 (4 common words)
Common example
eccentricities
Rare example
endoparasitism
Doubled letters
2
Ending in S
5
Most frequent letter
I (13)

Questions

How many 14-letter words matching e_____r_______ are there?

13. 4 of them are common words.

What is a common example?

ECCENTRICITIES is among the common words in this set.