πρόπειρα
From LSJ
ο φίλος τον φίλον εν πόνοις και κινδύνοις ου λείπει → a friend does not abandon his friend in difficulties and in danger, a friend in need is a friend indeed
English (LSJ)
ἡ,
A previous trial or venture, ἐν Ἀθηναίοισι τὴν πρόπειραν ποιέεσθαι, Lat.periculum facere in . ., Hdt.9.48; π. ποιεῖσθαι εἰ . . Th.3.86; π. τινὸς λαμβάνειν Ael.NA8.22; of a trial in athletic exercises, IG14.1102.16 (pl.).
German (Pape)
[Seite 739] ἡ, Vorversuch, vorläufiger Versuch; τὴν πρόπειραν ποιεῖσθαι ἔν τινι, Her. 9, 48; Thuc. 3, 86; Inscr.