torstaina

Torstaina is the Finnish word used to indicate that something happens on Thursday. It is the form used when referring to a time on that day, as in everyday speech and writing. In Finnish, days of the week are commonly expressed with suffixes to mark time, so torstai becomes torstaina to mean “on Thursday.” For example: Kokous on torstaina (The meeting is on Thursday), Lähden torstaina lomalle (I’m leaving for vacation on Thursday).

There is also a plural or recurring form, torstaisin, used to indicate a regular pattern such as a weekly schedule: Torstaisin menemme elokuviin (We go to the cinema on Thursdays). This form is typical for describing routines or recurring events.

Etymology and relatives: The Finnish day name torstai derives from the older Germanic tradition of naming the days after gods, with torstai reflecting Thor’s day. Related terms appear in other languages—Swedish torsdag, Norwegian torsdag, and English Thursday—sharing the same historical origin.

Notes on usage: Torstaina is not a proper noun and is written with lowercase unless it appears at the start of a sentence. It can appear with specific dates in a calendar context, for example “Torstaina 12. kesäkuuta.” In casual usage, speakers may also simply say “torstai” when naming the day, though “torstaina” is the common form for pointing to a time on that day.

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