An Etymological Dictionary of the German Language/Annotated/Auster

by Friedrich Kluge

Auster, feminine, ‘oyster,’ Modern High German only, from earlier Modern High German ûster, from Dutch oester, which, with the equivalent Anglo-Saxon ôstre, English oyster, French huitre, Italian ostrica, is based upon Latin ostrea, ostreum, Greek ὄστρεον, ‘oyster, mussel.’