Where does “kerrossiivooja” come from?

kerrossiivooja (Finnish) comes from Finnish siivooja, 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 “kerrossiivooja”, step by step

kerrossiivooja traces back through two separate lines of ancestry.

via Finnish siivooja

StepLanguageWordMeaning
1Finnishsiivoojacleaner, janitor; char, charlady, cleaning lady
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 kerros

StepLanguageWordMeaning
1Finnishkerrosfloor, storey; layer; Second-person singular...
2FinnishkerrataTo repeat or reread
3Finnishkertatime, occasion; time; times; also once, when the...
4Proto-Finnickertatime
5Proto-Indo-Europeankert-times; to weave, twist together; time
6Proto-Turkic*keŕ-to travel, tour
Every word from Proto-Indo-European -kʷe