15-Letter Words Matching ____H____N_____

There are 13 15-letter words that match ____H____N_____. 6 are common words, such as BROTHERLINESSES and FAITHLESSNESSES. A rarer one is TEACHABLENESSES. 11 words contain a doubled letter.

Full list 13

brotherlinessesfaithlessnessesfoolhardinessesfrightfulnessesloathsomenessesworthlessnessesforthcomingnessmorphophonemicstoothsomenessesdeathlessnesseslaughablenesseslymphogranulomateachablenesses

About this list

Words
13 (6 common words)
Common example
brotherlinesses
Rare example
teachablenesses
Doubled letters
11
Ending in S
12

Questions

How many 15-letter words matching ____h____n_____ are there?

13. 6 of them are common words.

What is a common example?

BROTHERLINESSES is among the common words in this set.