Eumenides vs Erinyes

Eumenides and Erinyes both are nouns.

Word	Noun	Adjective	Verb	Adverb
Eumenides	Yes	No	No	No
Erinyes	Yes	No	No	No

As nouns, Eumenides and Erinyes are synonyms defined as:

Eumenides and Erinyes: (classical mythology) the hideous snake-haired monsters (usually three in number) who pursued unpunished criminals

Other synonyms of Eumenides include Fury.

Eumenides (noun)	Erinyes (noun)
(classical mythology) the hideous snake-haired monsters (usually three in number) who pursued unpunished criminals	(classical mythology) the hideous snake-haired monsters (usually three in number) who pursued unpunished criminals