Where does “ruostesorsa” come from?

ruostesorsa (Finnish) comes from Finnish ruoste, from Proto-Finnic roostek, from Proto-Germanic rustaz, from Proto-Indo-European rudʰso-, from Proto-Indo-European h₁rewdʰ- — red.

ruostesorsa (Finnish): ruddy shelduck

Definitions

  1. ruddy shelduck

Ancestry of “ruostesorsa”, step by step

ruostesorsa traces back through two separate lines of ancestry.

via Finnish ruoste

StepLanguageWordMeaning
1Finnishruosterust; rusty; inessive case is sometimes better...
2Proto-Finnicroostekrust
3Proto-Germanicrustazrust
4Proto-Indo-Europeanrudʰso-red
5Proto-Indo-Europeanh₁rewdʰ-red

via Finnish Sorsa

StepLanguageWordMeaning
1FinnishSorsaduck bird of the
2Proto-Finnicsorsaduck, mallard
Every word from Proto-Indo-European h₁rewdʰ- →Every word from Proto-Indo-European rudʰso- →Every word from Proto-Germanic rustaz →