10-Letter Words Matching ___H___M__

There are 19 10-letter words that match ___H___M__. 7 are common words, such as ARRHYTHMIA and ARRHYTHMIC. A rarer one is TAPHONOMIC. In this set, I is the most frequent open letter (14 words). 5 words contain a doubled letter.

Full list 19

arrhythmiaarrhythmicemphysemashighwaymanhighwaymenmushroomednighttimesbushhammerdithyrambsemphysemiceurhythmiclightermanlightermenorchardmanunrhythmiccochairmancochairmenenthymemestaphonomic

About this list

Words
19 (7 common words)
Common example
arrhythmia
Rare example
taphonomic
Doubled letters
5
Ending in S
4
Most frequent letter
I (14)

Questions

How many 10-letter words matching ___h___m__ are there?

19. 7 of them are common words.

What is a common example?

ARRHYTHMIA is among the common words in this set.