"Viking" is indeed listed there as an English term derived from this root [0] - together with vicinity, villa and villain among others. But the actual invention

"Viking" is indeed listed there as an English term derived from this root [0] - together with vicinity, villa and villain among others. But the actual invention of the term is not likely directly related to the root. Personally I favor the explanation mentioned elsewhere: since Viken was both a place where many vikings came from, as well as a name for a topography where vikings often gathered before their raids (vik~=bay) then this is the most likely explanation, to me. [0] https://en.wiktionary.org/wiki/Category:English_terms_derived_from_the_Proto-Indo-European_root_*wey%E1%B8%B1- https://en.wiktionary.org/wiki/Category:English_terms_derive...