The author has studied the principal ways of formation of prepositions in general and those ones of the Tajik language, in particular, among which conjunctionalization occupies an important place; the term meaning a formation of prepositions by means of transition of full semantic words into prepositions. Hereby, it is defined that the form of a principal word fulfils first a connective function in a certain context, and then it may convert into an unchangeable unit; i, e. it forms a new dictionary unit. This process entails the conclusion that a definite generality of namely these new words can present an integrity of specific categorical tokens of the latter and unite transitional elements around itself, thus forming self-sufficient lexis, that of grammatical category words.
nominal-izafetial prepositions, repeated izafetial prepostions, prefixes, meaningful words, synsemantic words, lexical meaning, grammatical meaning, conjunctionalization
1. Vardul I. F. The Grounds of Descriptive Linguistics. - M.: Science, 1997.
2. Modern Literary Tajik Language. Part 1. Lexicology, Morphology and Phonetics. - Dushanbe: Enlightenment, 1982. - 462 pp.
3. Paul G. Principles of Language History. - M.: Publishing-house of Foreign Literature, 1960. - 500 pp.
4. Peshkovsky A. M. Russian Syntax in Scientific Elucidation. - M.: Enlightenment, 1956. - 512 pp.
5. Petrov N. Ye. Connective Words // In the book "Grammar of Modern Yakut Language. Phonetics and Morphology". - M.: Science, 1982. - pp. 89 – 112.
6. Rustamov Sh. Classification of the Parts of Speech and Place of Noun. - Dushanbe: Cogniton, 1972. – 88 pp.
7. Turdiboyev T. Kh. Conversion of Connective Words in the Uzbek Language. Candidate dissertation in philology. - Tashkent, 1996. - 132 pp.
8. Feldman N. I. Denominative Postposition in Modern Japanese // Issues of Grammatical Structure. - M.: Foreign Literature Publishing-house, 1955. - pp. 150-151.