This article examines the emergence of the lexical system investigative business language on the example of two predicates - poiskati (to search) and razyskati (to detect). The study is carried out on the material of the entries of «The Russian Language Dictionary of XI-XVII centuries». The method of context analysis was applied. As a result, it was concluded that the semantic variations have a stage development, and depend on the genre and stylistic specific characteristics of any work of literature which has great importance. Core and periphery relationship in terms of semantic representations turned to be confirmed by the diffusion processes of transformation, resulting in the explication of the investigative knowledge only in the second half of the XVII century.

Russian literary language, the language of business, investigative business language, business literature, semantic features, core and periphery relationship

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