údajov
údajov is the genitive plural form of the Slovak noun údad? no, the correct form is údaj. The word údaj means a single datum or piece of information. In its genitive plural úda jov (údajov) it is used in constructions that require the genitive case, typically to express "of data" or to indicate association with a quantity, value or process.
In Slovak, there is also the plural nominative form údaje, which is commonly used to mean data
The term appears widely in technical, administrative and legal contexts. It is used in phrases describing data