λόγῳ ἀναλίσκω τὸν χρόνον τῆς ἡμέρας → waste the day in idle talk, consume the duration of the day with talk
failing this: P. and V. εἰ δὲ μή.
Best of all, let us make terms for ever. Failing that…: P. μάλιστα μὲν εἰς ἀΐδιον συμβῶμεν, εἰ δὲ μὴ… (Thuc. 4, 63).