disparagement vs discourtesy

disparagement and discourtesy both are nouns.

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

As nouns, discourtesy is a hypernym of disparagement; that is, discourtesy is a word with a broader meaning than disparagement:

Other hypernyms of disparagement include disrespect.

disparagement (noun)	discourtesy (noun)
the act of speaking contemptuously of	a lack of politeness; a failure to show regard for others; wounding the feelings of others
a communication that belittles somebody or something	a manner that is rude and insulting
	an expression of lack of respect