The article investigates common and ethnic-language features in formal and semantic-functional representation of category of diminutiveness in Ukrainian, English and Latin, that shows the peculiarities of evaluative-emotional world conceptualization in world models of these languages. The formal features of diminutivity representation in Ukrainian, English and Latin on that levels of language structure, where denoted category can be represented, are viewed, common and particular for each language semantic-functional varieties of diminutive meaning representation are highlighted.