to the narrative, i.e. introduce language elements that reflect
the environment as a background to the narrative. By local color we also mean the devices used to describe the conditions of life the customs, the morals, and the manners of a given country at a given period.
To express a concept non-existant in English reality
Reproduce actual manner of speech and environment of the hero
They are used in publicist style. In fiction they sometimes help to elevate the language, because words which we do not understand have a peculiar charm.
“Exactifying” function – to express some exact meaning (au revoir vs. good-bye).
Functions of barbarisms: