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1570s as "dye obtained from lac;" 1670s as "lacquer," from obsolete French lacre, name for a kind of sealing wax, from Portuguese lacre, unexplained variant of lacca "resinous substance," from Arabic lakk, from Persian lak (see lac).
"cover or coat with laqueur," 1680s, from lacquer (n.). Related: Lacquered; lacquering.