12-Letter Words Matching _____M____U_

There are 13 12-letter words that match _____M____U_. 8 are common words, such as CONTEMPTUOUS and CONTUMACIOUS. A rarer one is COLLEMBOLOUS. 2 words contain a doubled letter.

Full list 13

contemptuouscontumaciouscontumeliousincommodiousinharmoniousmisdemeanourparsimoniouspresumptuousachlamydeouscircumfluousdiatomaceousnoctambulouscollembolous

About this list

Words
13 (8 common words)
Common example
contemptuous
Rare example
collembolous
Doubled letters
2
Ending in S
12

Questions

How many 12-letter words matching _____m____u_ are there?

13. 8 of them are common words.

What is a common example?

CONTEMPTUOUS is among the common words in this set.