chivvy vs dun

chivvy is not a noun while dun is a noun.

Word	Noun	Adjective	Verb	Adverb
chivvy	No	No	Yes	No
dun	Yes	Yes	Yes	No

As verbs, dun is a hyponym of chivvy; that is, dun is a word with a more specific, narrower meaning than chivvy:

Other hyponyms of chivvy include goad, needle, bedevil, crucify, frustrate, rag, torment, haze.

chivvy (noun)	dun (noun)
	horse of a dull brownish grey color
	a color or pigment varying around a light grey-brown color

chivvy (adjective)	dun (adjective)
	of a dull greyish brown to brownish grey color

chivvy (verb)	dun (verb)
annoy continually or chronically	make a dun color
	cure by salting
	persistently ask for overdue payment
	treat cruelly