ἀόργιστος
From LSJ
Οἱ βασιλεῖς τῇ ἐγκυκλοπαιδείᾳ, αὐτὴ τοῖς βασιλεῦσι (Salamanca inscription) → The kings for the university, and the university for the kings
English (LSJ)
ἀόργιστον, = ἀόργητος (incapable of anger, not irascible), Sor. 1.88.
Spanish (DGE)
-ον que no se enfurece, no irascible Sor.66.11.