What is "eurycyda"

In Greek mythology, Eurycyda (Εὐρυκύδα, sic) was the daughter of Endymion and either Asterodia, Chromia or Hyperippe. Her brothers were Aetolus, Epeius and Paeon.

With Poseidon, she mothered Eleius, after whom the region of Elis was named, as was its people, the Eleans.

Several authors refer to her as "Eurypyle".