discourtesy vs derision

discourtesy and derision both are nouns.

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

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

discourtesy: a lack of politeness; a failure to show regard for others; wounding the feelings of others
derision: the act of deriding or treating with contempt

Other hyponyms of discourtesy include ridicule, indelicacy, insolence, affront, insult, presumption, rebuff, slight.

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

discourtesy (noun)	derision (noun)
a lack of politeness; a failure to show regard for others; wounding the feelings of others	the act of deriding or treating with contempt
a manner that is rude and insulting	contemptuous laughter
an expression of lack of respect