Dictionary entry

μηδείς

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

μηδείς, -δεμία, -δέν

(and -θέν, Ac 27:33, a Hellenistic form; v. Bl., § 6, 7; Thackeray, Gr., 58), related to οὐδείς as μή to οὐ,

no, none, no one; neut., nothing: Mt 16:20, Mk 5:436:8, Lk 3:14, Ac 8:24, Ro 13:8, al.; c. gen., Ac 4:1724:23; neut. acc., μηδέν, adverbially, in no respect, Ac 10:2011:12; as acc. obj. after verb, βλάπτειν, Lk 4:35; ὠφελεῖσθαι, Mk 5:26; ὑστερεῖν, II Co 11:5; μεριμνᾶν, Phl 4:6; in double negation, strengthening the denial, μηκέτι μ., Mk 11:14, Ac 4:17; μὴ... μηδέν (μηδένα, μηδεμίαν), II Co 13:7, II Th 2:3, I Pe 3:6.