monsieur

noun2

1. •
   a French title, like "Mister" or "sir", used before a man's name or when speaking to him

   • It will appear by the Minutes sent You to June i6th last, and by those which accompany this Letter, that Messieurs Smith and Schlatter have done their Part; [...] — 1880
2. •
   (old-fashioned) A man, especially a French gentleman.

   • Pass round the decanters; glad to see ye; fill up, monsieurs! — 1851