14-Letter Words Matching ________N___A_

There are 19 14-letter words that match ________N___A_. 6 are common words, such as DISCIPLINARIAN and LATITUDINARIAN. A rarer one is SUBARACHNOIDAL. In this set, I is the most frequent open letter (17 words). 4 words contain a doubled letter.

Full list 19

disciplinarianlatitudinarianparaphernaliasseptuagenariansubcontinentalvaletudinarianattitudinariancommonsensicalepicontinentalferromagnesiannymphomaniacalpredestinarianpremillenarianbibliomaniacalhepatopancreasmegalomaniacalpreconsonantalsolitudinariansubarachnoidal

About this list

Words
19 (6 common words)
Common example
disciplinarian
Rare example
subarachnoidal
Doubled letters
4
Ending in S
2
Most frequent letter
I (17)

Questions

How many 14-letter words matching ________n___a_ are there?

19. 6 of them are common words.

What is a common example?

DISCIPLINARIAN is among the common words in this set.