Where does “tjuserska” come from?

tjuserska (Swedish) comes from Swedish tjusa, from Old Swedish kiusa, from Old Norse kjósa, from Proto-Germanic keusaną, from Proto-Indo-European ǵews- — to taste, try.

Ancestry of “tjuserska”, step by step

StepLanguageWordMeaning
1Swedishtjusato charm (so as to (try to) make enchanted, romantically or otherwise)
2Old Swedishkiusato choose; to enchant, hex
3Old Norsekjósato choose; to desire, wish; to elect
4Proto-Germanickeusanąto test, to try; to choose
5Proto-Indo-Europeanǵews-to taste, try
Every word from Proto-Indo-European ǵews- →Every word from Proto-Germanic keusaną →Every word from Old Norse kjósa →