αἰχμάζω
From LSJ
ἐν πίθῳ τὴν κεραμείαν μανθάνειν → in breaking many pots, the potter learns his craft | of those who undertake the most difficult tasks without learning the elements of the art | don't run before you can walk
English (LSJ)
Ep. fut. -άσσω,
A throw the spear, αἰχμὰς αἰχμάσσουσι Il.4.324; ἔνδον αἰχμάζειν play the warrior at home, A.Pers.756; αἰχμάσαι τάδε to perform these feats of arms, S.Tr.355; 'trail a pike', Men. Sam.284. II arm with the spear, πρὸς Ἀτρείδαισιν ᾔχμασας χέρα S.Aj.97: metaph. of general's speech, ἀ. τὴν διάνοιαν Onos.1.13. III wound, Nonn.D.35.178 s.v.l.