** μαρτύρομαι
(< μάρτυρ), [in LXX: Jth 7:28, I Mac 2:56 א)*;]
to summon as witness (M, Th., 25 f.; Hort., 1Pe., 53 f.; Lft., Notes, 29; Ga 203), hence,
(a) to protest, affirm solemnly: seq. ὅτι, Ac 20:26, Ga 5:3;
(b) to adjure, beseech: c. dat. pers., Ac 26:22; c. acc. et inf., Eph 4:17; seq. εἰς, I Th 2:12 (cf. δια-, προ-μαρτύρομαι).†