Where does “ruskosotka” come from?

ruskosotka (Finnish) comes from Finnish rusko, from Finnish ruskea, from Proto-Finnic ruskeda — brown, red.

ruskosotka (Finnish): ferruginous duck, "Aythya nyroca"

Definitions

  1. ferruginous duck, "Aythya nyroca"

Ancestry of “ruskosotka”, step by step

ruskosotka traces back through two separate lines of ancestry.

via Finnish rusko

StepLanguageWordMeaning
1FinnishruskoThe reddish glow at or near the horizon during...
2Finnishruskeabrown; A brown color
3Proto-Finnicruskedabrown, red

via Finnish sotka

StepLanguageWordMeaning
1Finnishsotkabluebill, scaup; The common goldeneye, "Bucephala...
2Proto-Finnicsotkaduck species
3Proto-Finno-Ugricśoδka
Every word from Proto-Finnic ruskedaEvery word from Finnish ruskeaEvery word from Finnish rusko