πεῖρα
Alt. πεῖρα, ἡ,
I. "a trial, attempt, essay, experiment", Theogn., Soph., etc.; —πεῖραν ἔχειν "to be proved", Pind.; but, πεῖραν ἔχειν τινός to have "experience" of a thing, Xen.; π. ἔχει τῆς γνώμης involves "a trial" of your resolution, Thuc.; —πεῖράν τινος λαμβάνειν to make "trial or proof" of.., Xen., etc.: —πεῖράν τινος διδόναι, Lat. specimen sui edere, Thuc.
2. with Preps., ἀπὸ πείρης by "experiment", Hdt.: —εἰς πεῖράν τινος ἔρχεσθαι, ἰέναι Eur., Thuc.: —ἐν πείρᾳ τινὸς γίγνεσθαι to be acquainted with, associate with one, Xen.: —ἐπὶ πείρᾳ by way of "test or trial", Ar.
II. "an attempt on or against" one, c. gen., Soph.
III. generally, "an attempt, enterprise", Aesch., Soph.