What is "aurvandil"

The names Aurvandil or Earendel (; ; ; ; ; Medieval ) are cognate Germanic personal names, continuing a Proto-Germanic reconstructed compound *auzi-wandilaz "luminous wanderer", in origin probably the name of a star or planet, potentially the morning star ( Eosphoros).

As a Germanic name, Auriwandalo is attested as a historical Lombardic prince. A Latinized version, Horvandillus, is given as the name of the father of Amleth in Saxo Grammaticus' Gesta Danorum. German Orentil (Erentil) is the hero of a medieval poem of the same name. He is son of a certain Eigel of Trier and has numerous adventures in the Holy Land.

The Old Norse variant appears in purely mythological context, linking the name to a star. The only known attestation of the Old English Earendel refers to a star exclusively.