Abstract: Semantic derivation is a way of word formation, as a result of which the semantic structure of lexemes, including somatisms, expands. The article examines the similarities and differences of the somatism "hand" in the Crimean Tatar and Turkish languages. With the help of component analysis, the semantic structure of the "hand" somatism, the types of connections between lexico-semantic variants of the polysemant are considered. The purpose of the article is to study the "hand" somatism in the Crimean Tatar and Turkish languages, analyze the semantic structures of polysemants and identify similarities and differences. The semantic structures of the somatisms "k'ol", "el" ("hand"), "avuch" ("palm"), "parmak" ("finger"), "tarnak" ("nail"), "tirsek" ("elbow"), "bilek" ("wrist"). The analysis revealed a number of similarities in the lexical and semantic composition of multivalued somatisms. The semantic structures of polysemantic lexemes nominating different parts of the hand are largely identical, however, there are some differences. The main ways of formation of lexical meanings were determined. Thus, in the Crimean Tatar and Turkish languages, secondary meanings are formed by metaphorical, metonymic and functional transfers, which is due to the similarity of appearance, color, quality, functions, etc. Lexico-semantic variants formed as a result of semantic derivation are interconnected by radial, catenal and radial-catenal types of connections.