seriilor

Seriilor is a Romanian grammatical form that functions as the genitive and dative plural of the noun seria (or seria, meaning series). It is used to indicate possession or to mark an indirect object in reference to more than one series. In Romanian, noun endings change according to case and number, and seriilor appears in contexts where the relationship is described as “of the series” or “to the series” for multiple series.

In practice, seriilor is most common in written or formal Romanian, especially in mathematical, statistical, academic, or literary prose. It enables phrases such as “valorile seriilor de numere” (the values of the series of numbers) or “contribuțiile seriilor istorice” (the contributions of the historical series), where the relation to the head noun is essential to the meaning.

Usage notes:

- Seriilor refers to more than one series. For a single series, related forms such as seria or a seria would be used, depending on definiteness and case.

- It is distinct from seriile (the series, nominative/definite form) and from seria (the series, indefinite or singular form); the ending signals a plural genitive/dative function.

- In everyday speech, Romanians may choose simpler constructions to express possession, but seriilor remains correct in formal contexts.

Related terms include serii, seriile, and seria, each serving different roles in gender, number, and definiteness. In mathematics, seria is used for a sum of terms (a series), while in media contexts, serie can refer to a TV series or seasonal set, with seriilor appearing in possessive or indirect constructions when multiple series are involved.