Liddell-Scott-Jones

κέγχρος (kegchros) millet ^G:N-M

κέγχρος, ὁ

(also ἡ, [Refs 4th c.BC+], millet, Panicum miliaceum, usually in plural, [Refs 8th c.BC+]; of a single grain, [Refs 7th c.BC+]:—also κέρχνος, [Refs 4th c.BC+]; compare κέρχνωμα, κέρχνη.

__II anything in small grains:
__II.1 spawn of fish, [Refs 5th c.BC+]
__II.2 small beads, [Refs 2nd c.AD+]
__II.3 speck, sty in the eye, [Refs 4th c.AD+]
__III ={κεγχρίας} 11 (which see), [Refs 1st c.AD+]
__IV small kind of diamond, [Refs 1st c.AD+]