-ISM

noun suffix Etymology: Middle English ~e, from Middle French & Latin; Middle French, partly from Latin ~a (from Greek) & partly from Latin ~us, from Greek ~os; Greek ~a & ~os, from verbs in -izein -ize 1. act ; practice ; process , manner of action or behavior characteristic of a (specified) person or thing , prejudice or discrimination on the basis of a (specified) attribute , 2. state ; condition ; property , abnormal state or condition resulting from excess of a (specified) thing , 3. doctrine ; theory ; religion , adherence to a system or a class of principles , characteristic or peculiar feature or trait