13-Letter Words Matching ____G____A___

There are 24 13-letter words that match ____G____A___. 6 are common words, such as ALLEGORICALLY and CATEGORICALLY. A rarer one is SPHYGMOGRAPHS. In this set, I is the most frequent open letter (20 words). 19 words contain a doubled letter.

Full list 24

allegoricallycategoricallyenergeticallyevangelicallyinorganicallypostgraduatescategorizablecryogenicallydemagogicallydisaggregateddraughtboardsideogrammaticmonogrammaticontogenicallypanegyricallypedagogicallyabiogenicallyantigenicallydisaggregateslogogrammaticmonogenicallymutagenicallyphragmoplastssphygmographs

About this list

Words
24 (6 common words)
Common example
allegorically
Rare example
sphygmographs
Doubled letters
19
Ending in S
5
Most frequent letter
I (20)

Questions

How many 13-letter words matching ____g____a___ are there?

24. 6 of them are common words.

What is a common example?

ALLEGORICALLY is among the common words in this set.