We don't have synonyms for endymion yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are encomion and entomion.
(n) :
(Greek mythology) A man described variously as a handsome Aeolian shepherd, hunter, or king, who was loved by Selene or Artemis (the two being often conflated) and was said to rule and live at Olympia in Elis, as well as venerated and said to reside in Caria, southwest Asia Minor, on Mount Latmus.
(n) :
(Greek mythology) A man described variously as a handsome Aeolian shepherd, hunter, or king, who was loved by Selene or Artemis (the two being often conflated) and was said to rule and live at Olympia in Elis, as well as venerated and said to reside in Caria, southwest Asia Minor, on Mount Latmus.