9-Letter Words Matching ____O_F__

There are 13 9-letter words that match ____O_F__. 4 are common words, such as DISCOMFIT and DRAGONFLY. A rarer one is YELLOWFIN. 6 words contain a doubled letter.

Full list 13

discomfitdragonflyflavorfulsorrowfulreproofeddobsonflymarrowfatrauwolfiaenfeoffedharborfulinfeoffednongolferyellowfin

About this list

Words
13 (4 common words)
Common example
discomfit
Rare example
yellowfin
Doubled letters
6
Ending in S
0

Questions

How many 9-letter words matching ____o_f__ are there?

13. 4 of them are common words.

What is a common example?

DISCOMFIT is among the common words in this set.