14-Letter Words Matching ____SO________

There are 18 14-letter words that match ____SO________. 5 are common words, such as GRUESOMENESSES and HANDSOMENESSES. A rarer one is TOILSOMENESSES. In this set, E is the most frequent open letter (17 words). 15 words contain a doubled letter.

Full list 18

gruesomenesseshandsomenessesirresolutenesslonesomenessestiresomenessesoversolicitoustheosophicallyaerosolizationantisocialistsfearsomenessesfootsorenessesgamesomenessesgladsomenessesglossographersillusorinessesjohnsongrasseslongsomenessestoilsomenesses

About this list

Words
18 (5 common words)
Common example
gruesomenesses
Rare example
toilsomenesses
Doubled letters
15
Ending in S
16
Most frequent letter
E (17)

Questions

How many 14-letter words matching ____so________ are there?

18. 5 of them are common words.

What is a common example?

GRUESOMENESSES is among the common words in this set.