Proerosia
προηρόσια
Proerosia (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.)
From William Smith (ed.), Dictionary of Greek and Roman Antiquities. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.