c. 1300, "something seen in the imagination or in the supernatural," from Anglo-French visioun, Old French vision "presence, sight; view, look, appearance; dream, supernatural sight" (12c.), from Latin visionem (nominative visio) "act of seeing, sight, thing seen," noun of action from past participle stem of videre "to see," from PIE root *weid- "to see." The meaning "sense of sight" is first recorded late 15c. Meaning "statesman-like foresight, political sagacity" is attested from 1926.
French masc. definite article (including the old neuter), fem. la, from Latin ille "he, that," used in Late Latin and Medieval Latin as the definite article. Cognate with Spanish el. Latin ille "that," illa "by that way, there," replaced Old Latin olle/ollus, perhaps by analogy with iste [de Vaan]; from PIE *hol-no- "that, yonder."
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Harper, D. (n.d.). Etymology of voila. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/voila