(1) In Theravada, the mental factor of not becoming angry at others' shortcomings, mistakes, or cruel deeds. (2) In Mahayana, the mental urge that leads one to be unperturbed by those who do harm and by suffering, so that one never becomes angry. When conjoined with a bodhichitta aim, patience becomes a far-reaching attitude.
Tibetan: བཟོད་པ། bzod-pa
J. Hopkins: Forbearance