ἀμητήρ
From LSJ
αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
English (LSJ)
[ᾰ, but ᾱ metri gr.], ῆρος, ὁ, (ἀμάω A)
A reaper, Il.11.67, Theoc.7.29: Adj., ἀμητῆρι τύπῳ in form like a sickle, Nonn.D.26.302:—fem. ἀμ-ήτειρα EM83.2.
German (Pape)
[Seite 123] ῆρος, ὁ, Schnitter, Hom. einmal, Il. 11, 67; Theocr. 7, 29; vom Kriege Christod. Ecphr. 376.