Rekisteriinsä

Rekisteriinsä is a Finnish noun form built from rekisteri, meaning register, with the third-person possessive suffix -nsä. The form is used to express that something is kept in or directed to someone’s own registry. In formal or bureaucratic language, rekisteriinsä can convey the sense of “into his/her/its registry” or “in his/her/its registry,” depending on the surrounding grammar.

Morphology and function: The base rekisteri combines with the possessive suffix -nsä to indicate ownership (his/her/its register). The resulting form often appears in contexts where records are being added to or stored within a specific person’s registry. The exact case or directional nuance (such as illative or allative) may be determined by the rest of the sentence.

Usage: rekisteriinsä tends to occur in administrative, archival, or legal-language contexts rather than in everyday speech. It is used when describing actions related to a person’s own registry or database, such as how information is entered, updated, or stored.

Examples:

- Hän teki merkinnän rekisteriinsä. (He made an entry in his registry.)

- Tietoja siirrettiin rekisteriinsä. (Data were transferred into his/her registry.)

These constructions illustrate how rekisteriinsä locates actions or records within a specific owner’s registry.

See also: rekisteri, possessive suffixes in Finnish, illative and other case forms in Finnish grammar.

Note: The form is stylistically neutral but most common in formal writing. In everyday Finnish, speakers might rephrase to emphasize possession or destination using other constructions.