Abstract
The goddess Orthia, whose name is attested by different variants in inscriptions mainly at her sanctuary at Sparta, and who was at some point identified with Artemis, is the subject of an ongoing debate in various fields of ancient studies. As the textual mythology of the goddess is meagre, the etymology of this theonym is of primary importance in bringing to light possible mythological concepts associated with the deity. Drawing on earlier attempts proposed in the literature, the Greek adjective ὀρθός (ved. ūrdhvá- ‚upright‘) is identified as the natural derivational basis for the name, which can in turn be traced back to the PIE root underlying ved. vrādh- and av. uruuad-. In Vedic, ūrdhvá- is used in describing the epiphany of Uṣas. Orthia can therefore be considered to be a descendant of the PIE dawn goddess. Via its etymology, the name of Orthia is related to the Avestan theonym Arəduuī (and probably to Celtic Ardvinna as well). The abundantly documented mythological profile of the Iranian goddess matches up well with the proposed origin of the name, thereby cross-validating the linguistic and mythological origin of Orthia.
Sommer, Florian