Before revision: Agathism, from the Greek ἀγαθός agathos URL is, according to the Oxford English Dictionary, "The doctrine that all things tend towards ultimate good, as distinguished from optimism, which holds that all things are now for the best".
After revision: Agathism, from the Greek ἀγαθός agathos (good) is, according to the Oxford English Dictionary, "The doctrine that all things tend towards ultimate good, as distinguished from optimism, which holds that all things are now for the best".