15-Letter Words Matching ___OG__________

There are 18 15-letter words that match ___OG__________. 4 are common words, such as DEMOGRAPHICALLY and HOMOGENIZATIONS. A rarer one is RECOGNIZABILITY. In this set, I is the most frequent open letter (17 words). 12 words contain a doubled letter.

Full list 18

demographicallyhomogenizationstopographicallytypographicallyautographicallyholographicallyhomogeneousnessontogeneticallyxerographicallycytogeneticallycytogeneticistshemoglobinuriashomogenisationsideographicallyillogicalnesseslogographicallylysogenizationsrecognizability

About this list

Words
18 (4 common words)
Common example
demographically
Rare example
recognizability
Doubled letters
12
Ending in S
7
Most frequent letter
I (17)

Questions

How many 15-letter words matching ___og__________ are there?

18. 4 of them are common words.

What is a common example?

DEMOGRAPHICALLY is among the common words in this set.