9-Letter Words Matching _____G_U_

There are 12 9-letter words that match _____G_U_. 3 are common words, such as ANALOGOUS and HUMONGOUS. A rarer one is VESTIGIUM. In this set, M is the most frequent open letter (9 words). 1 words contain a doubled letter.

Full list 12

analogoushumongoushumungouscollegiumcontagiumfastigiumisologousnystagmussuperglueuropygiumpterygiumvestigium

About this list

Words
12 (3 common words)
Common example
analogous
Rare example
vestigium
Doubled letters
1
Ending in S
5
Most frequent letter
M (9)

Questions

How many 9-letter words matching _____g_u_ are there?

12. 3 of them are common words.

What is a common example?

ANALOGOUS is among the common words in this set.