LSJ
ον, mowing hay, δρέπανα PCair. Zen. 782 (a).123 (iii BC). -κόπον, τό, scythe for mowing hay, PRyl. 393v10 (ii/iii AD). -κόπος, ὁ, mower, reaper, PGoodsp. Cair. 30 xx 12 (ii AD), Gloss.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
Gras abhauend, mähend, Sp.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)