Ústnej

Ústnej is the feminine singular genitive and dative form of the Slovak adjective ústny, meaning “oral” or “mouth-related.” It is used to describe structures, diseases, or functions connected with the mouth or oral cavity.

In Slovak, adjectives decline for gender, number, and case. Therefore ústnej appears in phrases such as ústnej dutiny (of the oral cavity) or chorobám ústnej dutiny (to the diseases of the oral cavity). It also occurs in everyday and technical expressions like v ústnej reči (in spoken language) and stav ústnej dutiny (the condition of the oral cavity).

Etymology and cognates: ústnej derives from the adjective ústny, which is linked to ústa (mouth). This root appears across Slavic languages with similar forms, for example Polish ustny, Czech ústní, and Russian ustny, all conveying the sense of “oral” or “mouth-related.”

Usage notes: ústnej is a descriptive form used with feminine nouns in specific cases (genitive and dative). It is common in medical, dental, and linguistic contexts. As a standalone word it is incomplete; it typically accompanies a noun, such as ústnej dutiny or ústnej reči, to specify the subject of discussion.

See also: ústa, ústna dutina, ústna reč, ústny.

Overall, ústnej functions as a standard grammatical form to denote relations to the mouth or oral cavity in Slovak, appearing in both everyday and technical language.