Prvoj

Prvoj is a grammatical form encountered in several South Slavic languages as the feminine singular case form of the ordinal adjective "prvi" meaning "first." It does not function as an independent lexical item; rather, it is part of the paradigm that marks gender, number, and case for adjectives and related numerals.

In Croatian, Serbian, Bosnian and Montenegrin, the form prvoj arises when the modified noun is feminine and the sentence requires a feminine singular form in the dative or locative case; the exact case is determined by the governing preposition and the syntactic role of the noun. The form is a standard part of the inflection system used to express agreement with feminine nouns in specific syntactic contexts.

The form is used across standard varieties of these languages and may vary in dialects. It is one of several inflected forms for the ordinal "prvi," alongside others such as "prvi" (masculine nominative), "prva" (feminine nominative), and "prvo" (neuter or adverbial use).

In linguistic references, prvoj is described as a grammatical inflection rather than a standalone lexical item. Its occurrence is typical in contexts that discuss order, sequence, or positioning with feminine nouns.

See also: prvi, prva, prvo, first in Slavic languages; related grammatical notes on adjective declension. References: standard grammar handbooks of Serbo-Croatian languages.