15-Letter Words Matching ___A_E_________

There are 12 15-letter words that match ___A_E_________. 2 are common words, such as IMMATERIALITIES and MANAGEABILITIES. A rarer one is UNCATEGORIZABLE. In this set, I is the most frequent open letter (12 words). 3 words contain a doubled letter.

Full list 12

immaterialitiesmanageabilitiesdematerializinghamamelidaceousimmaterializingparametrizationdamageabilitiesparageneticallyparasexualitiesphrasemongeringrematerializinguncategorizable

About this list

Words
12 (2 common words)
Common example
immaterialities
Rare example
uncategorizable
Doubled letters
3
Ending in S
5
Most frequent letter
I (12)

Questions

How many 15-letter words matching ___a_e_________ are there?

12. 2 of them are common words.

What is a common example?

IMMATERIALITIES is among the common words in this set.