φειδέομαι

From LSJ

γνοίης ὅσσον ὄνων κρέσσονες ἡμίονοι → you know how much better are donkeys from mules

Source

German (Pape)

[Seite 1260] ion. statt φείδομαι, vgl. Valck. Her. 8, 10.