peroration vs ending

peroration and ending both are nouns.

Word	Noun	Adjective	Verb	Adverb
peroration	Yes	No	No	No
ending	Yes	No	No	No

As nouns, ending is a hypernym of peroration; that is, ending is a word with a broader meaning than peroration:

Other hypernyms of peroration include close, closing, conclusion, end.

peroration (noun)	ending (noun)
(rhetoric) the concluding section of an oration	the act of ending something
a flowery and highly rhetorical oration	the end of a word (a suffix or inflectional ending or final morpheme)
	the last section of a communication
	event whose occurrence ends something
	the point in time at which something ends