ἀδιανοητεύομαι
From LSJ
ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
English (LSJ)
speak unintelligibly, Sch.Ar.Av.1377.
Greek (Liddell-Scott)
ἀδιανοητεύομαι: ἀποθ., ὁμιλῶ ἀδιανοήτως, ἀκατανοήτως, Σχόλ. εἰς Ἀριστοφ. Ὄρν. 1377.
Spanish (DGE)
hablar sin pensar Sch.Ar.Au.1377.