7-Letter Words Matching ____L_M

There are 12 7-letter words that match ____L_M. 3 are common words, such as HOODLUM and PABULUM. A rarer one is MOHELIM. In this set, U is the most frequent open letter (8 words). 5 words contain a doubled letter.

Full list 12

hoodlumpabulumproblemosculumphellemskellumbaculumblellumchillumjugulummohalimmohelim

About this list

Words
12 (3 common words)
Common example
hoodlum
Rare example
mohelim
Doubled letters
5
Ending in S
0
Most frequent letter
U (8)

Questions

How many 7-letter words matching ____l_m are there?

12. 3 of them are common words.

What is a common example?

HOODLUM is among the common words in this set.