11-Letter Words Matching ____UM_____

There are 40 11-letter words that match ____UM_____. 18 are common words, such as CIRCUMCISED and CIRCUMCISES. A rarer one is UNCRUMPLING. In this set, I is the most frequent open letter (33 words). 5 words contain a doubled letter.

Full list 40

Common words

circumcisedcircumcisescircumpolarcircumspectcircumventsconsumablesconsumerismconsumeristconsummatedconsummatesconsumptionconsumptive
circumcisedcircumcisescircumpolarcircumspectcircumventsconsumablesconsumerismconsumeristconsummatedconsummatesconsumptionconsumptivecontumaciescontumeliesoutnumberedperfumeriespresumptionpresumptivecircumfusedcircumfusescircumlunarcircumsolarconsummatorharrumphingmediumisticnonruminantsubsumptionsuffumigatewampumpeagscircumcisercostumeriesdicoumarinsdicoumarolsmediumshipsnonluminousoutfumblingouthumoringprenumberedpresuminglyuncrumpling

About this list

Words
40 (18 common words)
Common example
circumcised
Rare example
uncrumpling
Doubled letters
5
Ending in S
14
Most frequent letter
I (33)

Questions

How many 11-letter words matching ____um_____ are there?

40. 18 of them are common words.

What is a common example?

CIRCUMCISED is among the common words in this set.