αὐτοσχεδιάζω
From LSJ
English (LSJ)
aor. part. Pass.
A -ασθείς Stratt.4 D.: (αὐτοσχέδιος):—act or speak offhand, extemporize, Pl.Cra.413d, Mx.235c, X. Mem.3.5.21. 2 c. acc., extemporize, τὰ δέοντα Th.1.138, cf. X.HG 5.2.32. II mostly in bad sense, act, speak, or think unadvisedly, v.l. in Pl.Euthd.278e; αὐ. καὶ καινοτομεῖν περὶ τῶν θείων Id.Euthphr.5a, cf. Ap.20c, Isoc.9.41, D.61.43; περί τι Pl.Euthphr.16a, Arist.Pol.1326b19; εἰς τὰ τῶν Ἐλλήνων σώματα Aeschin.3.158.