A.cut fresh into, in mining, open a new vein, X.Vect.4.27 sq., Phot.; in road-making, metaph., “ἀτραπὸν ἄλλην” Ph.2.445, cf. J. BJ5.9.4, Luc.Rh.Pr.10 (Pass.).
II. mostly metaph., begin something new, institute anew, “τελετήν τινι” Ar.V.876 (anap.): abs., make changes or innovations in the state, Id.Ec.584 (anap.), Arist.Pol. 1305b41, 1316b19, Plb.15.30.1, PLips.35.19 (iv A. D.), etc.: generally, “μὴ καινοτομεῖν” Phld.Mus.p.9K.; “κ. τι νέον” Pl.Lg.797c, cf. 709a; “κ. περὶ τὰ θεῖα” Id.Euthphr.3b, 16a; περὶ τῶν θείων ib.5a; “τὰ θεῖα” Jul.Or. 5.159b; “κ. τὴν περὶ τὰ τέκνα κοινότητα” Arist.Pol.1266a35; οὐθὲν κ. εἰς [τὰ γινόμενα περὶ θεῶν σεβασμούς] D.H.7.70, cf. Comp.25:—Pass., Pl.Lg.797b, D.59.75.