Luke 24:16

Were holden that they should not know him (ekratounto tou mh epignwnai auton). Imperfect passive of kratew, continued being held, with the ablative case of the articular infinitive, "from recognizing him," from knowing him fully (epi-gnwnai, ingressive aorist of epiginwsko). The mh is a redundant negative after the negative idea in ekratounto.