11-Letter Words Matching H________M_

There are 17 11-letter words that match H________M_. 5 are common words, such as HEATHENDOMS and HEATHENISMS. A rarer one is HYPOCORISMS. 3 words contain a doubled letter.

Full list 17

heathendomsheathenismshippopotamihonorariumshypothalamihysterotomyharvesttimeheadstreamshenotheismshepatectomyheteroatomshipsterismshomeothermshomeothermyhoodlumismshyaloplasmshypocorisms

About this list

Words
17 (5 common words)
Common example
heathendoms
Rare example
hypocorisms
Doubled letters
3
Ending in S
11

Questions

How many 11-letter words matching h________m_ are there?

17. 5 of them are common words.

What is a common example?

HEATHENDOMS is among the common words in this set.