the use of the vernacular or a term in the vernacular
vernacularism in American English
(vərˈnækjələrˌɪzəm)
noun
1.
a vernacular word, phrase, or usage
2.
the use of vernacular language
vernacularism in American English
(vərˈnækjələˌrɪzəm, vəˈnæk-)
noun
1.
a vernacular word or expression
2.
the use of the vernacular
Word origin
[1840–50; vernacular + -ism]This word is first recorded in the period 1840–50. Other words that entered Englishat around the same time include: creationism, dope, flan, plaque, set piece-ism is a suffix appearing in loanwords from Greek, where it was used to form action nounsfrom verbs (baptism). On this model, -ism is used as a productive suffix in the formation of nouns denoting action or practice,state or condition, principles, doctrines, a usage or characteristic, devotion oradherence, etc. (criticism; barbarism; Darwinism; despotism; plagiarism; realism; witticism; intellectualism)