henkilöllisiin

Henkilöllisiin is a Finnish grammatical form of the adjective henkilöllinen, meaning personal or pertaining to a person. It is the illative plural form used to modify a plural noun in the illative case, conveying the sense of movement toward or focus on those persons or things. In practice, henkilöllisiin is commonly found with nouns such as tieto or tiedot (data/information) to express “to personal data” or “to personal matters.”

In typical usage, henkilöllisiin is paired with a plural noun and appears in contexts that describe access, protection, or relation to personal subjects. For example, phrases like henkilöllisiin tietoihin, henkilöllisiin asioihin or henkilöllisiin tietoihin liittyen translate roughly to “to personal data,” “to personal matters,” or “in relation to personal data.” The illative form signals direction or relevance within a sentence, particularly in formal or legal language.

Etymology and morphology: the form combines the base adjective henkilöllinen with the regular Finnish plural illative ending -isiin. This construction mirrors other adjectives that agree with plural nouns in illative, such as pieniin tai suuriin tietoihin (to small or large data). It is part of Finnish’s rich system of case and agreement rather than a standalone lexical item.

Context and usage: while not a standalone concept, henkilöllisiin is a productive form in written Finnish, especially in administrative, legal, and privacy-related texts. A closely related noun is henkilötieto (personal data), with plural form henkilötiedot; the illative plural would be henkilöittä tietoihin in appropriate constructions.

Related terms include henkilötiedot, henkilöllinen, and Finnish grammar entries on illative and adjective agreement.