8-Letter Words Matching ___PN___

There are 12 8-letter words that match ___PN___. 4 are common words, such as DAMPNESS and DEEPNESS. A rarer one is TRAPNEST. In this set, S is the most frequent open letter (12 words). 4 words contain a doubled letter.

Full list 12

dampnessdeepnessgrapnelslimpnessdyspneasacapniasdyspnealdyspneicdyspnoeadyspnoicjeepneystrapnest

About this list

Words
12 (4 common words)
Common example
dampness
Rare example
trapnest
Doubled letters
4
Ending in S
7
Most frequent letter
S (12)

Questions

How many 8-letter words matching ___pn___ are there?

12. 4 of them are common words.

What is a common example?

DAMPNESS is among the common words in this set.