9-Letter Words Matching ______N_A

There are 33 9-letter words that match ______N_A. 12 are common words, such as CATATONIA and DELPHINIA. A rarer one is VAGOTONIA. In this set, I is the most frequent open letter (27 words). 3 words contain a doubled letter.

Full list 33

Common words

catatoniadelphiniainfluenzajacarandamemorandamillenniamonomaniaperitoneapneumoniaprosceniapyromaniareferenda
catatoniadelphiniainfluenzajacarandamemorandamillenniamonomaniaperitoneapneumoniaprosceniapyromaniareferendaamyotoniacatameniaclaytoniaclintoniadysphoniaeudemoniahoustoniahypomaniapaulowniasymphoniatheomaniaanhedoniaargumentaascogoniahyperpneahypotoniairredentairridentaparamentatricliniavagotonia

About this list

Words
33 (12 common words)
Common example
catatonia
Rare example
vagotonia
Doubled letters
3
Ending in S
0
Most frequent letter
I (27)

Questions

How many 9-letter words matching ______n_a are there?

33. 12 of them are common words.

What is a common example?

CATATONIA is among the common words in this set.