Guenevere vs Guinevere

Guenevere and Guinevere both are nouns.

Word	Noun	Adjective	Verb	Adverb
Guenevere	Yes	No	No	No
Guinevere	Yes	No	No	No

As nouns, Guenevere and Guinevere are synonyms defined as:

Guenevere and Guinevere: (Arthurian legend) wife of King Arthur; in some versions of the legend she became Lancelot's lover and that led to the end of the Knights of the Round Table

Guenevere (noun)	Guinevere (noun)
(Arthurian legend) wife of King Arthur; in some versions of the legend she became Lancelot's lover and that led to the end of the Knights of the Round Table	(Arthurian legend) wife of King Arthur; in some versions of the legend she became Lancelot's lover and that led to the end of the Knights of the Round Table