pestävälle
Pestävälle is a Finnish word that translates to "for the pest" or "to the pest." It is a grammatical case ending, specifically the allative case, used to indicate direction or destination towards something perceived as negative or undesirable. The allative case in Finnish generally signifies movement towards a place or object, but the use of "pestävälle" imbues this movement with a connotation of being directed towards something harmful, unpleasant, or even intentionally inflicted.
The word is formed by combining the root "pestä" (to wash, to clean) with the allative case