κοῦφον

From LSJ

ἀλλήλων τὰ βάρη βαστάζετε, καὶ οὕτως ἀναπληρώσετε τὸν νόμον τοῦ Χριστοῦ → bear each other's burdens, and in that way fulfill the anointed King's Law (Galatians 6:2)

Source

Russian (Dvoretsky)

κοῦφον: τό легкая часть: τὰ κοῦφα τῆς δυνάμεως Polyb. легковооруженные войска.