Where does “kädestäkatsoja” come from?

kädestäkatsoja (Finnish) comes from Finnish katsoja, from Finnish jä, from Proto-Finno-Ugric *ja, from Proto-Germanic jahw, from Proto-Germanic -hw, from Proto-Germanic -hwe, from Proto-Indo-European -kʷe — and; Forms distributives from interrogatives.

Ancestry of “kädestäkatsoja”, step by step

kädestäkatsoja traces back through two separate lines of ancestry.

via Finnish katsoja

StepLanguageWordMeaning
1Finnishkatsojaviewer, spectator; viewer; spectator
2Finnishice
3Proto-Finno-Ugric*ja
4Proto-Germanicjahwand, also
5Proto-Germanic-hwand; Forms distributives from interrogatives
6Proto-Germanic-hwe
7Proto-Indo-European-kʷeand; Forms distributives from interrogatives

via Finnish käsi

StepLanguageWordMeaning
1Finnishkäsihand; arm
2Finnishkahdeksaneight
3Proto-Finnickakteksaeight
4Proto-Finnickakcitwo
5Proto-Uralic*kakta
Every word from Proto-Indo-European -kʷeEvery word from Proto-Germanic -hwEvery word from Proto-Germanic jahw