Abbott-Smith Manual Greek Lexicon
ἅλων (G257)
2 ἅλων , -ωνος (for Attic ἅλως, -ω , v. MM, VGT , s.v.), ἡ , [in LXX chiefly for גֹּרֶן ;] a threshing floor : Mt 3:12 , Lk 3:17 (here prob. by meton. = the grain on the threshing floor).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain