Ἀχελήτιδες

From LSJ

καὶ τῇ ὧν λέγεις καὶ φθέγγῃ ἡρωικῇ ἀληθείᾳ ἀρκούμενος, εὐζωήσεις → and satisfied with heroic truth in every word and sound which you utter, you will live happy

Source

Spanish (DGE)

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