προσγυμνάζω
From LSJ
ἀλεξίκακε τρισέληνε, μηδέποθ' ἡττηθείς, σήμερον ἐξετάθης → averter of woes, offspring of three nights, thou, who never didst suffer defeat, art to-day laid low
English (LSJ)
A exercise at or in a thing, τινι Pl.Lg.647c:—Med., ὁ -αζόμενος,=sq., Gal.6.177 (v.l. προγ-) ; π. τινί Alex.Aphr.in Top.232.3; πολέμῳ -γεγυμνασμένος Plu.Marc.27. 2 metaph. in Med., enter into a contest with, τινι D.Chr.36.27: abs., M.Ant.6.20.
German (Pape)
[Seite 754] dabei, daran üben; Plat. Legg. I, 647 c; τῷ πολέμῳ προσγεγυμνασμένος, Plut. Marcell. 27.