ETYM Old Fren. escuyer, escuier, properly, a shield-bearer, French écuyer shield-bearer, armor-bearer, squire of a knight, esquire, equerry, rider, horseman, Late Lat. scutarius shield-bearer, from Latin scutum shield.
(In medieval England) An attendant and shield bearer to a knight; a candidate for knighthood.
A titled peer of the realm; SYN. noble, nobleman.
In the UK, prefix used informally as alternative to the full title of a marquess, earl, or viscount; normally also in speaking of a baron, and as a courtesy title before the forename and surname of younger sons of dukes and marquesses.
1. A form of address for a man; SYN. Mr.
2. Sir — used without a name as a generalized term of direct address of a man who is a stranger
3. A man not entitled to a title of rank or an honorific or professional title
ETYM French, from mon my + Sieur, abbrev. of seigneur lord. Related to Monseigneur.
Term used as a French courtesy title; equivalent to English 'Mr'.
1. The common title of civility in France in speaking to, or of, a man; Mr. or Sir.
2. (History) The oldest brother of the king of France.