Acaste

Acaste is attested in Greek mythographic and poetic sources as one of the Oceanids, the many daughters of the Titans Oceanus and Tethys. The Oceanids form a broad genealogical class in Hesiodic and later mythographic traditions; individual Oceanids are frequently named in lists and in narrative contexts. In the Homeric Hymn to Demeter Acaste is listed among the companions of Persephone at the time of the maiden's abduction by Hades, which situates her functionally as an attendant or witness in that central mythic episode. Separately, later genealogical summaries record a different bearer of the name Acaste as the nurse of the daughters of King Adrastus of Argos, indicating the name's use for more than one figure in Greek tradition.

No unique physical description of Acaste is preserved in the cited sources. As an Oceanid she would be understood within the common iconography and literary depiction of nymphs: anthropomorphic young female nature-spirits associated with water and natural sites (springs, streams, the sea), typically portrayed as youthful attendants of greater deities in poetry and art. The supplied references name Acaste but do not attribute individualized attire, distinguishing marks, or iconographic attributes to her.

The sources provided do not assign distinct powers, magical practices, or independent mythic actions to Acaste beyond her role as a named Oceanid and attendant. By virtue of membership in the class of Oceanids she shares the general function of water-associated nymphs in Greek myth — companions, attendants, and personifications connected to watery or natural features — but no specific agency, cult, or miracles are recorded for Acaste in the cited materials.