ἀναπειρᾶσθαι
From LSJ
κατὰ τὸ φιλόκαλον πειραθέντα κατανοῆσαι → see by working out the calculation
Greek > English (Woodhouse Verbs Reversed)
(see also ἀναπειράομαι, ἀναπείρω): practice manœuvres with ships, practice manoeuvres with ships
Lexicon Thucydideum
exercere se, to practice, 7.7.4, 7.12.5, [vulgo commonly ἀποπειρώμεναι]. 7.51.2, [ante Wass. before Wassius ἀνεπαὑοντο]