eventide vs eve

eventide and eve both are nouns.

Word	Noun	Adjective	Verb	Adverb
eventide	Yes	No	No	No
eve	Yes	No	No	No

As nouns, eventide and eve are synonyms defined as:

eventide and eve: the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)

Other synonyms of eventide include even, evening.

eventide (noun)	eve (noun)
the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)	the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)
	the day before
	the period immediately before something