διαπειράομαι · diapeiraomai — LSJ
make trial or proof of, τῶν Περσέων Hdt. 5.109, cf. 3.14, Cratin.Jun. 7.2; try to impose on a man, Pl. Lg. 921b: c. gen. rei, have experience of a thing, Th. 6.91: abs., ὥσπερ αἴνιγμα συντιθέντι διαπειρωμένῳ Pl. Ap. 27a, cf. Lg. l.c.
attempt obstinately, τὰ ψευδῆ λέγειν Antipho l.c.
late in Act., διαπειρῶν δωροδοκίαις Plu. Pomp. 51.