longanimity
Patience or tolerance in the face of adversity; forbearance, long-suffering.
archaic, uncountable
It had overcome the patience of Job, as it did the meekness of Moses, and would surely have mastered any, but the longanimity, and lasting sufferance of God [...].
Where it comes from
From Late Latin longanimitās, from longanimis, translating Ancient Greek μακροθυμία (makrothumía).
Adapted from the Wiktionary entry longanimity (CC BY-SA 4.0).