dun vs crucify

dun is a noun but crucify is not a noun.

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

As verbs, dun and crucify are synonyms defined as:

Other synonyms of dun include bedevil, frustrate, rag, torment.

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

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

dun (verb)	crucify (verb)
make a dun color	criticize harshly or violently
cure by salting	treat cruelly
persistently ask for overdue payment	hold within limits and control
treat cruelly	kill by nailing onto a cross