Ἀχελήτιδες

From LSJ

Ἀλλ' Ἀχέροντι νυμφεύσω → I will become the bride of Acheron

Sophocles, Antigone, 816

Spanish (DGE)

-ων, αἱ
Aquelétides ninfas del río Aqueloo de Lidia, Panyas.20.