sunnuntaisin
Sunnuntaisin is a Finnish adverbial form meaning "on Sundays" or "every Sunday." It expresses habitual or recurring action tied to the day Sunday and is used to indicate that something regularly happens on that day of the week.
Etymology and formation: the word derives from sunnuntai (Sunday) with the distributive adverbial suffix -sin, a
Grammar and usage: sunnuntaisin functions as a temporal adverb and typically appears with verbs to describe
Pronunciation: typical Finnish pronunciation can be approximated as [ˈsunːuntɑisin], with geminated consonants characteristic of Finnish phonology.
Related forms: other weekdays form similar adverbs (e.g., maanantaisin, tiistaisin), and temporal expressions in Finnish also