ЧелГУ, Челябинск, 2013, 4 стр.
Language is never stable. In the course of time the vocabulary changes by being supplemented with new words which come into being with the development of science and culture. A certain number of obsolete words usually drop out of the vocabulary of the language. Obsolete words pass out of use completely or remain in the language as elements performing purely historical descriptive functions. The disappearance of old occupations causes the disappearance of their old names. The names of such old occupations can be preserved as family names...