gruffness vs roughness

gruffness and roughness both are nouns.

Word	Noun	Adjective	Verb	Adverb
gruffness	Yes	No	No	No
roughness	Yes	No	No	No

As nouns, roughness is a hypernym of gruffness; that is, roughness is a word with a broader meaning than gruffness:

Other hypernyms of gruffness include harshness.

gruffness (noun)	roughness (noun)
a throaty harshness	harsh or severe speech or behavior
an abrupt discourteous manner	a texture of a surface or edge that is not smooth but is irregular and uneven
	the quality of being harsh or rough or grating to the senses
	an unpolished unrefined quality
	the formation of small pits in a surface as a consequence of corrosion
	used of the sea during inclement or stormy weather
	rowdy behavior