Where does “tiaiskerttuli” come from?

tiaiskerttuli (Finnish) comes from Finnish kerttuli, from Finnish Kerttu, from German Gertrud, from Old High German gēr, from Proto-West Germanic gaiʀ, from Proto-Germanic gaizaz, from Proto-Indo-European ǵʰoysós, from Proto-Indo-European ǵʰey- — winter.

tiaiskerttuli (Finnish): northern parula, Parula americana

Definitions

  1. northern parula, Parula americana

Ancestry of “tiaiskerttuli”, step by step

tiaiskerttuli traces back through two separate lines of ancestry.

via Finnish kerttuli

StepLanguageWordMeaning
1Finnishkerttuliwarbler, New World warbler; parula
2FinnishKerttuGretel, the girl in the fairy tale Hansel and Gretel
3GermanGertrud
4Old High Germangērspear
5Proto-West Germanicgaiʀspear
6Proto-Germanicgaizazspear, pike, javelin
7Proto-Indo-Europeanǵʰoysósthrowing spear
8Proto-Indo-Europeanǵʰey-winter

via Finnish tiainen

StepLanguageWordMeaning
1Finnishtiainentitmouse, chickadee, tit
2Finnishinen
Every word from Proto-Indo-European ǵʰey-Every word from Proto-Indo-European ǵʰoysósEvery word from Proto-Germanic gaizaz