repetition vs epiphora

repetition and epiphora both are nouns.

Word	Noun	Adjective	Verb	Adverb
repetition	Yes	No	No	No
epiphora	Yes	No	No	No

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

repetition: the repeated use of the same word or word pattern as a rhetorical device
epiphora: repetition of the ends of two or more successive sentences, verses, etc.

repetition (noun)	epiphora (noun)
the act of doing or performing again	repetition of the ends of two or more successive sentences, verses, etc.
the repeated use of the same word or word pattern as a rhetorical device
an event that repeats