Where does “shelduck” come from?

shelduck (English) comes from English Duck, from Dutch doek, from Middle Dutch doec, from Old Dutch duok, from Proto-West Germanic dōk, from Proto-Germanic dōkaz, from Proto-Indo-European dwōg-.

shelduck (English): Any of various waterfowl of the genus "Tadorna",...

Definitions

  1. Any of various waterfowl of the genus "Tadorna",...

Ancestry of “shelduck”, step by step

shelduck traces back through two separate lines of ancestry.

via English Duck

StepLanguageWordMeaning
1EnglishDuckTo quickly lower (the head or body), often in order to prevent it from being struck by something
2Dutchdoekcloth, linen, fabric; a piece of cloth; screen,...
3Middle Dutchdoeccloth
4Old Dutchduok
5Proto-West Germanicdōkcloth, rag
6Proto-Germanicdōkazcloth, rag
7Proto-Indo-Europeandwōg-

via English sheld

StepLanguageWordMeaning
1Englishsheldvariegated; spotted; speckled; piebald
Every word from Proto-Indo-European dwōg-