Monsieur

Mon·sieur  (m-sy)

n. pl. Mes·sieurs (m-sy, msrz)

1. 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.

2. monsieur Used as a form of polite address for a man in a French-speaking area.

---

[French, 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).]

---

monsieur (French) [məsjø (English) məsˈjɜː]

n pl messieurs (French) [mesjø (English) ˈmɛsəz]

a French title of address equivalent to sir when used alone or Mr when placed before a name

[literally: my lord]

Thesaurus

Noun

1.

Monsieur - used as a French courtesy title; equivalent to English `Mr' adult male, man - an adult person who is male (as opposed to a woman); "there were two women and six men on the bus"