köken: Borrowed from Low German robbe, rubbe, in Middle Low German meaning “rabbit." Of uncertain ultimate origin; compare English rabbit, French rabot (“plane”). Or, possibly related to Latvian rups (“coarse, rough”), referring to the whiskers. Also compared is the personal name Robbe. Has also been compared to English rub, referring to seals' movements, but this is unlikely.
köken: Compound of anjing (“dog”) + laut (“sea”), calque of Dutch zeehond (“seal”, literally “sea hound”), from Middle Dutch seehont, possibly an alteration of seelhont (literally “seal-hound, seal-dog”), from seel (“seal”), from Proto-Germanic *selhaz.
köken: From Old Norse kobbi, from Proto-Germanic *kubb-, from Proto-Indo-European *gup- (“round object, knoll”), from *gew- (“to bend, curve, arch, vault”).