λεύκωμα
From LSJ
ἡ δὲ γεωργία πέττει καὶ ἐνεργὸν ποιεῖ τὴν τροφήν → tillage brings to maturity and calls into action the nutritive properties of the soil
English (LSJ)
ατος, τό,
A tablet covered with gypsum, used as a public notice-board, ἐς λ. γράψαι, ἀναγράφειν, Lys.9.6, Lex ap.D.24.23, IG12(5).647.40 (Ceos), PHib.1.29.9 (iii B.C.), etc.: hence ἐν λευκώμασιν γραφῆναι to be posted in a list of defaulters, 'to be sold up', App.Prov.2.63; of the proscription-list, D.C.47.3; of the album of senators, Id.55.3: hence οἱ τοῦ λ. senators, Procop.Arc.29. II whiteness, Arist.Phgn.813a28. 2 a white spot in the eye, caused by a thickening of the cornea, PGrenf.1.33.14 (ii B.C.), Dsc.3.84, Gal. 14.775, Sammelb.4414.6 (ii A.D.), Aët.7.39 tit.