Where does “Kyösti” come from?

Kyösti (Finnish) comes from Finnish Kustaa, from Swedish Gustaf — an earlier variant of Gustav.

Ancestry of “Kyösti”, step by step

StepLanguageWordMeaning
1FinnishKustaaGustav
2SwedishGustafan earlier variant of Gustav
Every word from Swedish Gustaf →Every word from Finnish Kustaa →
Kyösti — Etymology, Origin & Word History | Etymology Explorer