κρῖναι δὲ λόγῳ πολύδηριν ἔλεγχον ἐξ ἐμέθεν ῥηθέντα → judge by reason the too much contested argument which has been given by me
(see also: ἀνασκοπέω) examine
expendere, to weigh, examine, 1.132.2, 7.42.3.