ἀκροβυστία, -ας, ή

(perh. an Alexandrian form of cl. ἀκροποσθία; cf. MM, VGT, see word) [in LXX for עׇרְלָה ;]

the prepuce, foreskin (LXX), hence abstr. uncircumcision: Act.11:3, Rom.2:25-27 3:30 4:10-12, 1Co.7:18-19, Gal.5:6 6:15, Col.2:13 3:11 By meton. the uncircumcised: Rom.4:9, Gal.2:7, Eph.2:11.†

(AS)

the prepuce; foreskin; uncircumcision; the uncircumcised