11-Letter Words Matching __S_______M

There are 13 11-letter words that match __S_______M. 2 are common words, such as ABSENTEEISM and DESIDERATUM. A rarer one is SYSTEMATISM. In this set, I is the most frequent open letter (13 words). 2 words contain a doubled letter.

Full list 13

absenteeismdesideratumbisexualismdisaccustomhesperidiumhistoricismhistrionisminsectariummesotheliummesothoriumpastoralismpositroniumsystematism

About this list

Words
13 (2 common words)
Common example
absenteeism
Rare example
systematism
Doubled letters
2
Ending in S
0
Most frequent letter
I (13)

Questions

How many 11-letter words matching __s_______m are there?

13. 2 of them are common words.

What is a common example?

ABSENTEEISM is among the common words in this set.