15-Letter Words Matching _R___H_________

There are 12 15-letter words that match _R___H_________. 2 are common words, such as TREACHEROUSNESS and WRONGHEADEDNESS. A rarer one is TRANSHISTORICAL. 3 words contain a doubled letter.

Full list 12

treacherousnesswrongheadednessfranchisabilityornithorhynchusbreathabilitiesbronchodilatorsbronchoscopistscrotchetinessesfrenchificationprosthodontistsprotohistorianstranshistorical

About this list

Words
12 (2 common words)
Common example
treacherousness
Rare example
transhistorical
Doubled letters
3
Ending in S
9

Questions

How many 15-letter words matching _r___h_________ are there?

12. 2 of them are common words.

What is a common example?

TREACHEROUSNESS is among the common words in this set.