γνοίης ὅσσον ὄνων κρέσσονες ἡμίονοι → you know how much better are donkeys from mules
deny on oath: P. and V. ἐξομνύναι (or mid.), ἀπομνύναι.
renounce: P. and V. ἐᾶν, χαίρω ἐᾶν, χαίρειν ἐᾶν.