" co-existence of diverse cultures in a society," 1965, from multicultural + -ism.
Entries linking to multiculturalism
multicultural adj.
also multi-cultural, of a society, "consisting of varied cultural groups," by 1941; see multi- "many"+ culture (n.) + -al (1). At first often in a Canadian context. Picked up by U.S. education writers 1980s; widespread popular use from c. 1990.
-ism
word-forming element making nouns implying a practice, system, doctrine, etc., from French -isme or directly from Latin -isma, -ismus (source also of Italian, Spanish -ismo, Dutch, German -ismus), from Greek -ismos, noun ending signifying the practice or teaching of a thing, from the stem of verbs in -izein, a verb-forming element denoting the doing of the noun or adjective to which it is attached. For distinction of use, see -ity. The related Greek suffix -isma(t)- affects some forms.