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Name

The ethnonym is attested as Wandali and Wendilenses by Saxo, as Vendill in Old Norse, and as Wend(e)las in Old English, all going back to a Proto-Germanic form reconstructed as * Wanđilaz. The etymology of the name remains unclear. According to linguist Vladimir Orel, it may stem from the Proto-Germanic adjective * wanđaz ('turned, twisted'), itself derived from the verb * wenđanan (or *winđanan), meaning 'to wind'. Alternatively, it has been derived from a root * wanđ-, meaning 'water', based on the idea that the tribe was originally located near the Limfjord (a sea inlet in Denmark). The stem can also be found in Old High German wentilsēo and Old English wendelsǣ, both literally meaning 'Vandal-sea' and designating the Mediterranean Sea.

The Germanic mythological figure of Aurvandill has been interpreted by Rudolf Much to mean 'Shining Vandal'. Much forwarded the theory that the tribal name Vandal reflects worship of Aurvandil or the Divine Twins, possibly involving an origin myth that the Vandalic kings were descended from Aurvandil (comparable to the case of many other Germanic tribal names).

Some medieval authors equated two classical ethnonyms, "Vandals" and Veneti, and applied both to West Slavs, leading to the term Wends, which has been used for various Slavic-speaking groups and is still used for Lusatians. However, modern scholars derive "Wend" from "Veneti", and do not equate the Veneti and Vandals.

The name of the Vandals has been connected to that of Vendel, the name of a province in Uppland, Sweden, which is also eponymous of the Vendel Period of Swedish prehistory, corresponding to the late Germanic Iron Age leading up to the Viking Age. The connection is considered tenuous at best and more plausibly the result of chance, though Scandinavia is considered the probable homeland of the tribe prior to the Migration Period.