pyöristettyihin

pyöristettyihin is the plural partitive case of the Finnish word pyöristetty. In Finnish grammar, the partitive case is used to express an incomplete action, a portion of something, or an indefinite quantity. The adjective pyöristetty means "rounded" or "curved." Therefore, pyöristettyihin literally translates to "to the rounded ones" or "some rounded things."

This grammatical form would be used in sentences where one is referring to an indefinite number or part of multiple rounded objects or concepts. For example, if one were discussing rounding numbers, they might say that certain results were "pyöristettyihin," indicating that those results were indeed rounded. The partitive case here suggests that the rounding might not be complete for all instances, or it's referring to a selection of rounded items rather than a definitive set. The specific context of the sentence would determine the precise nuance of the phrase.