kirjautui

Kirjautui is the past tense, third-person singular form of the Finnish verb kirjautua. Kirjautua means to log in, sign in, or otherwise gain access to a system or service by providing authentication. The form kirjautui is used to describe that someone or something completed the login action in the past. In everyday usage it commonly appears in sentences such as Hän kirjautui sisään, meaning He/She logged in.

Etymology and sense: The verb is built on the idea of recording or entering a person’s presence in a system, with kirja (book/record) as a related root. In computing contexts, kirjautua and its forms refer specifically to authenticating and entering a digital environment, rather than to general “registration” or enrollment.

Grammatical notes: The corresponding first-person past tense is kirjautuin, and the imperative form is kirjaudu. The noun form for the process is kirjautuminen, and related terms include kirjautumistiedot (login credentials). The verb is intransitive, typically requiring a directional element such as sisään (in) or palveluun (to the service) to specify where the login occurs. For logging out, common expressions use kirjaudu ulos.

Usage considerations: In Finnish, kirjautua emphasizes the act of gaining access to a system rather than the act of becoming a member, which is more often described with verbs like rekisteröityä or liittyä. Kirjautui, as a narrative past form, appears in reporting or descriptive text about past user activity on websites, apps, or computer systems.