Where does “kupukantainen” come from?

kupukantainen (Finnish) comes from Finnish kupu, from Proto-Finnic kupu — crop, craw.

kupukantainen (Finnish): roundhead of the head of a screw, rivet, etc.: dome-shaped

Definitions

  1. roundhead of the head of a screw, rivet, etc.: dome-shaped

Ancestry of “kupukantainen”, step by step

StepLanguageWordMeaning
1Finnishkupudome; canopy; crop, craw
2Proto-Finnickupucrop, craw
Every word from Proto-Finnic kupuEvery word from Finnish kupu