ἀπόπειρα
From LSJ
ἀναγκαιότεραι μὲν οὖν πᾶσαι ταύτης, ἀμείνων δ᾽ οὐδεμία → accordingly, although all other sciences are more necessary than this, none is more excellent (Aristotle, Metaphysics A 983a10)
English (LSJ)
ἡ,
A trial, venture, ἀ. ποιεῖσθαι τῆς μάχης make trial of their way of fighting, Hdt.8.9; ναυμαχίας ἀ. λαμβάνειν Th.7.21; δοῦναι ἀ. εὐσεβείας give proof of it, Ph.1.650.
German (Pape)
[Seite 318] ἡ, Versuch, Probe, τινὸς ποιεῖσθαι Her. 8, 9; ἀπόπειραν λαμβάνειν ναυμαχίας Thuc. 7, 21; Pol. 27, 4; vgl. 22, 17 u. Sp.