Where does “Tainio” come from?

Tainio (Finnish) comes from Proto-Germanic tainijǭ, from Proto-Germanic tainaz, from Proto-Indo-European doynos.

Ancestry of “Tainio”, step by step

StepLanguageWordMeaning
1Proto-Germanictainijǭwickerwork; wicker basket
2Proto-Germanictainazrod; twig; straw; lot
3Proto-Indo-Europeandoynos—
Every word from Proto-Indo-European doynos →Every word from Proto-Germanic tainaz →Every word from Proto-Germanic tainijǭ →