Lieu

wiktionary

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Borrowed from French lieu, from Latin locum, accusative of locus(“place”).

etymonline

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lieu (n.)

late 13c., usually as part of the phrase in lieu of "in the place, room, or stead of," from Old French lieu, lou "place, position, situation, rank" (10c.) from Latin locum (nominative locus) "a place" (see locus).