LSJ Gloss:ἐγκοπήa hindranceDodson:ἐγκοπήan impediment, hindrancean incision, a cutting, break; met: an interruption, a hindrance.
TBESG:ἐγκοπήhindranceG:N-F ἐγκοπή, see: ἐνκ-. ἐν-κοπή (Rec. ἐγκ-, see: ἐν; T, ἐκκ-), -ῆς, ἡ (< ἐγκόπτω) ; 1. an incision, a cutting, break. 2. Metaph., an interruption, a hindrance: 1Co.9:12.† (AS)
ἐγκόπτω egkoptō eng-kop'-to From G1722 and G2875; to cut into, that is, (figuratively) impede, detainKJV Usage: hinder, be tedious unto.