proerosia

PROERO´SIA(προηρόσια), called also προαρκτούρια (Paus. 10.15), a festival in the month Boedromion, celebrated by a procession to Eleusis and offerings there to Demeter. It was held by the Athenians on behalf of all Greece, before the land was ploughed for sowing, to entreat for a plentiful harvest. (Suid., Hesych., Etym. Mag. s. v.; Arrian, in Epictet. 3.21; Mommsen, Heortol. 218, Preller, Gr. Myth. 1.608.)