Monsieur[mə syʉr′; Fr mə sy′]
- Abbr. M Used as a courtesy title before the surname, full name, or professional title of a man in a French-speaking area: Monsieur Cartier; Monsieur Jacques Cartier.
- monsieur Used as a form of polite address for a man in a French-speaking area.
Origin of MonsieurFrench, from Old French : mon, my (from Latin meum, accusative of meus; see me-1 in Indo-European roots) + sieur, lord, sir (from Vulgar Latin *seiorem, accusative of *seior; see Sire ).
Variant of monsieur