"disappear quickly," c. 1300, from shortened form of esvaniss-, stem of Old French esvanir "disappear; cause to disappear," from Vulgar Latin *exvanire, from Latin evanescere "disappear, pass away, die out," from ex "out" (see ex-) + vanescere "vanish," inchoative verb from vanus "empty, void," from PIE *wano-, suffixed form of root *eue- "to leave, abandon, give out." Related: Vanished; vanishing; vanishingly. Vanishing point in perspective drawing is recorded from 1797.
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