Where does “kuusioruuvi” come from?

kuusioruuvi (Finnish) comes from Finnish kuusio, from Finnish kuusi, from Proto-Finnic kuuci, from Proto-Uralic kutte — ridge; six.

kuusioruuvi (Finnish): hex head screw, hexagon screw

Definitions

  1. hex head screw, hexagon screw

Ancestry of “kuusioruuvi”, step by step

kuusioruuvi traces back through two separate lines of ancestry.

via Finnish kuusio

StepLanguageWordMeaning
1Finnishkuusioregular hexagon; lousewort, betony
2Finnishkuusisix; spruce; Norway spruce, "Picea abies"
3Proto-Finnickuucisix
4Proto-Uralickutteridge; six

via Finnish ruuvi

StepLanguageWordMeaning
1Finnishruuviscrew
2Middle Low Germanschrūvescrew machine
3Proto-Indo-European(s)ḱer-dung, manure, filth; manure, dung, filth
Every word from Proto-Uralic kutteEvery word from Proto-Finnic kuuciEvery word from Finnish kuusi