15-Letter Words Matching ___LA__________

There are 13 15-letter words that match ___LA__________. 4 are common words, such as COLLATERALIZING and IMPLACABILITIES. A rarer one is THALASSOCRACIES. In this set, I is the most frequent open letter (13 words). 6 words contain a doubled letter.

Full list 13

collateralizingimplacabilitiesphilanthropistssyllabificationcollaborativelyinflammablenessphilanthropicalsublapsarianismcholangiographycollateralitiesdeglamorizationphilanthropoidsthalassocracies

About this list

Words
13 (4 common words)
Common example
collateralizing
Rare example
thalassocracies
Doubled letters
6
Ending in S
6
Most frequent letter
I (13)

Questions

How many 15-letter words matching ___la__________ are there?

13. 4 of them are common words.

What is a common example?

COLLATERALIZING is among the common words in this set.