ism

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Definition

1. 1
   Used to form nouns of action, process, or result based on the accompanying verb ending in -ise or -ize.
2. 2
   Used to form the name of a school of thought, system, or theory based on the name of its subject or object or alternatively on the name of its founder (When de-capitalized, these overlap with the generic "doctrines" sense below, e.g. Liberalism vs. liberalism.)
3. 3
   Used to form names of a tendency of action, behaviour, condition, opinion, or state belonging to a class or group of persons, or the result of a doctrine, ideology, or principle or lack thereof.
4. 4
   Used to form countable nouns indicating a peculiarity or characteristic of language
5. 5
   Used to form names of ideologies expressing belief in the superiority of a certain class within the concept expressed by the root word, or a pattern of behavior or a social norm that benefits members of the group indicated by the root word. (Based on a late 20th-century narrowing of the "terms for a doctrine" sense.)
6. 6
   Used to form names of conditions (syndromes, diseases, disorders, defects, addictions) and therapeutical methods or doctrines.

Etymology

Etymology tree Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Indo-European *-mos Proto-Indo-European *-mós Ancient Greek -μός (-mós) Ancient Greek -ισμός (-ismós)der. English -ism Ultimately from Ancient Greek -ισμός (-ismós), a suffix that forms abstract nouns of action, state, condition, doctrine, from stem of verbs in -ίζειν (-ízein) (whence English -ize). Doublet of -ismus. Many English nouns in -ism are loans of Greek nouns in -ισμός (-ismós), often via Latin and French, such as Judaism, a learned English formation from Latin attested from c. 1500 and ultimately from Ancient Greek Ἰουδαϊσμός (Ioudaïsmós). In Late Latin, the -ismus suffix became the ordinary ending for names of religions and ecclesiastical or philosophical systems or schools of thought, thus chrīstiānismus (whence 16th c. Christianism) in Tertullian, a trend continued in Medieval Latin, with e.g. pāgānismus attested by the 8th century. From the 16th century, such formations became very common in English, until the early 18th century mostly restricted to either root words of Greek or Latin origin (heroism, patriotism) or proper names (Calvinism, Lutheranism). Productivity from root words with evidently non-Latin and non-Greek origin dates to the late 18th century (e.g. blackguardism). Reflecting this productivity, use of ism as a standalone noun is attested in Edward Pettit (1680) and becomes common from the mid-18th century. The narrowed sense of forming terms for ideologies based on the belief of superiority is based on coinages such as racism (1932) or sexism (1936) and productive since the 1970s.

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