Jazyku

Jazyku is the dative and locative singular form of the noun jazyk in Czech, and the locative singular form of język in Polish. The noun means “language” or “tongue.” As a grammatical form, jazyku is used after prepositions that govern the dative or locative case in Czech, and after locative-preposition phrases in Polish. It marks the relation to language, such as the topic of discussion or position within a language context.

In Czech, jazyku appears in phrases with prepositions that require the dative or locative case, such as o and v/ve. For example, “O jazyku českém se učí na škole” means “We study about the Czech language,” and “Ve jazyku českém existuje mnoho dialektů” conveys “In the Czech language there are many dialects.” These usages illustrate how the form signals reference to language in discourse.

In Polish, the corresponding form is języku (with diacritics), used after locale-prepositions like w and o. For example, “W języku polskim” means “in the Polish language.” The diacritic form is standard in Polish orthography, and in non-diacritic texts it may appear as języku or jezyku depending on encoding.

Etymologically, jazyku/język/języku derive from the noun meaning language or tongue and function primarily as grammatical forms rather than independent lexical entries. Their primary purpose is to indicate a spatial or topical relationship to language within a sentence. In normal usage, they are part of broader phraseology rather than standalone terms.