Where does “eiderduck” come from?

eiderduck (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-.

eiderduck (English): eider

Definitions

  1. eider

Ancestry of “eiderduck”, step by step

eiderduck 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 Eider

StepLanguageWordMeaning
1EnglishEiderthe boundary between Schleswig and Holstein
2Swedishejdereider; common eider, the species "Somateria...
3Low Germaneider
4Icelandicæðureider; vein; wadable
5Old Norseæðrvein; eider
6Proto-Germanicēþrōvein
7Proto-Indo-Europeanēt-er-stomach, intestines
Every word from Proto-Indo-European dwōg-Every word from Proto-Germanic dōkazEvery word from Proto-West Germanic dōk