discourtesy vs scorn

discourtesy and scorn both are nouns.

Word	Noun	Adjective	Verb	Adverb
discourtesy	Yes	No	No	No
scorn	Yes	No	Yes	No

As nouns, scorn is a hyponym of discourtesy; that is, scorn is a word with a more specific, narrower meaning than discourtesy:

discourtesy (noun)	scorn (noun)
a lack of politeness; a failure to show regard for others; wounding the feelings of others	open disrespect for a person or thing
a manner that is rude and insulting	lack of respect accompanied by a feeling of intense dislike
an expression of lack of respect

discourtesy (verb)	scorn (verb)
	reject with contempt
	look down on with disdain