Athene vs Athena

Athene and Athena both are nouns.

Word	Noun	Adjective	Verb	Adverb
Athene	Yes	No	No	No
Athena	Yes	No	No	No

As nouns, Athene and Athena are synonyms defined as:

Athene and Athena: (Greek mythology) goddess of wisdom and useful arts and prudent warfare; guardian of Athens; identified with Roman Minerva

Other synonyms of Athene include Pallas, Pallas Athena, Pallas Athene.

Athene (noun)	Athena (noun)
a genus of Strigidae containing the spotted owlet, little owl, forest owlet, and burrowing owl (Athene)	(Greek mythology) goddess of wisdom and useful arts and prudent warfare; guardian of Athens; identified with Roman Minerva
(Greek mythology) goddess of wisdom and useful arts and prudent warfare; guardian of Athens; identified with Roman Minerva