ὑπωπιάζω
(ὑπώπιον, (a) the part of the face below the eyes; (b) a blow on the face),
to strike under the eye, give a black eye:
metaphorically,
__(a) of persistent annoyance (RV, wear out), Luk.18:6;
__(b) of severe self-discipline (R, txt. buffet, mg. bruise), 1Co.9:27 (see Field, Notes, 71, 174).†
ὑπο-πιάζω,
later form of ὑποπιέζω, to press slightly; metaphorically,
to repress: 1Co.9:27 T.7 for ὑπωπιάζω, which see†
(AS)