c.1300, from shortened form of stem of Old French esvanir "disappear," from Vulgar Latin *exvanire , from Latin evanescere "disappear, die out," from ex- "out" (see ex-) + vanescere "vanish," from vanus "empty" (see vain).
From a Scottish surname which was derived from the Old Norse given name Liulfr (which was derived in part from úlfr "wolf"). Home » Names.
