In Greek mythology, Eunostus () was a goddess whose image was set up in mills, and who was believed to keep watch over the just weight of flour.Hesychius, s.v. Eunostus; Eustathius on Homer, pp. 214, 1383; Suda ν 501
Promylaia () was another name for a goddess of the mills, who was worshipped in the same fashion as Eunostus.Suda π 2519
Notes
References Smith, William, Dictionary of Greek and Roman Biography and Mythology, London (1873). Eunostus (2).