disrespect vs discourtesy

disrespect and discourtesy both are nouns.

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

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

Other hypernyms of disrespect include rudeness.

As nouns, disrespect and discourtesy are synonyms defined as:

disrespect (noun)	discourtesy (noun)
a manner that is generally disrespectful and contemptuous	a lack of politeness; a failure to show regard for others; wounding the feelings of others
a disrespectful mental attitude	a manner that is rude and insulting
an expression of lack of respect	an expression of lack of respect

disrespect (verb)	discourtesy (verb)
have little or no respect for; hold in contempt
show a lack of respect for