Where does “julpinnappi” come from?

julpinnappi (Finnish) comes from Finnish näppi, from Proto-Finnic näppi — fingertip, finger.

julpinnappi (Finnish): fly button

Definitions

  1. fly button

Ancestry of “julpinnappi”, step by step

julpinnappi traces back through two separate lines of ancestry.

via Finnish näppi

StepLanguageWordMeaning
1Finnishnäppithe tips of the thumb and another finger or...
2Proto-Finnicnäppifingertip, finger

via Finnish julppi

StepLanguageWordMeaning
1Finnishjulppifly strip that hides the opening of trousers/pants or underpants
2Swedishgylfa fly (on pants)
Every word from Proto-Finnic näppi →Every word from Finnish näppi →
julpinnappi — Etymology, Origin & Word History | Etymology Explorer