Origin:
1710–20; < French: desk, office, originally a kind of cloth (used to cover desks, etc.), Anglo-French, Old French burel, equivalent to bur- (probably < *būra, variant of Late Latin burra wool, fluff; compare bourrée) + -el noun suffix
Related formssub·bu·reau, noun, plural sub·bu·reaus, sub·bu·reaux.