13-Letter Words Matching ____L_____A__

There are 17 13-letter words that match ____L_____A__. 7 are common words, such as COMPLEMENTARY and COMPLIMENTARY. A rarer one is SUPPLEMENTALS. In this set, N is the most frequent open letter (16 words). 4 words contain a doubled letter.

Full list 17

complementarycomplimentaryintellectualsmegalomaniacsrevolutionarysupplementarytotalitariansdevolutionaryequalitariansinvolutionaryscholasticatebimillennialsconclusionaryfutilitariansnonelementarysemilegendarysupplementals

About this list

Words
17 (7 common words)
Common example
complementary
Rare example
supplementals
Doubled letters
4
Ending in S
7
Most frequent letter
N (16)

Questions

How many 13-letter words matching ____l_____a__ are there?

17. 7 of them are common words.

What is a common example?

COMPLEMENTARY is among the common words in this set.