ἀρεστηρία

From LSJ

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

Source

Spanish (DGE)

-ας, ἡ
sacrificio propiciatorio ἀρ[εσ] τηρίαν θῦσαι IG 22.1672.223 (Eleusis IV a.C.).