15-Letter Words Matching ___E_R_________

There are 16 15-letter words that match ___E_R_________. 5 are common words, such as INTERROGATIVELY and INTERROGATORIES. A rarer one is IRREFRAGABILITY. In this set, I is the most frequent open letter (15 words). 11 words contain a doubled letter.

Full list 16

interrogativelyinterrogatoriespenetrabilitiestelegraphicallyteleprocessingscerebrovascularforeordinationsinterrogationalinterrogatorilyvoyeuristicallydeterrabilitieshyperreactivityhyperresponsiveintegrabilitiesintegrationistsirrefragability

About this list

Words
16 (5 common words)
Common example
interrogatively
Rare example
irrefragability
Doubled letters
11
Ending in S
7
Most frequent letter
I (15)

Questions

How many 15-letter words matching ___e_r_________ are there?

16. 5 of them are common words.

What is a common example?

INTERROGATIVELY is among the common words in this set.