Quick answer
Endymion is a boy name meaning "to dive into, to enter".
Pronunciation: Classical Greek /en.dy.mí.ɔːn/; English /ɛn.ˈdɪm.i.ən/.
Meaning and history
This name is derived from Greek ἐνδύω (endyo) meaning "to dive into, to enter". In Greek mythology he was an Aeolian mortal loved by the moon goddess Selene, who asked Zeus to grant him eternal life. Zeus complied by putting him into an eternal sleep in a cave on Mount Latmos.
Notes and context
Usage: greek mythology | Ancient Greek: Ἐνδυμίων