MONSEIGNEUR

Noun

Monseigneur (plural Monseigneurs or Messeigneurs)

Alternative letter-case form of monseigneur

Etymology

Noun

monseigneur (plural monseigneurs or messeigneurs)

An honorific form of address for an eminent person in France, especially under the Ancien Régime.

(in particular) A title of the Dauphin of France.

Source: Wiktionary

Mon`sei`gneur", n.; pl. Messeigneurs. Etym: [F., fr. mon my + seigneur lord, L. senior older. See Senior, and cf. Monsieur.]

Definition: My lord; -- a title in France of a person of high birth or rank; as, Monseigneur the Prince, or Monseigneur the Archibishop. It was given, specifically, to the dauphin, before the Revolution of 1789. (Abbrev. Mgr.)

Source: Webster’s Unabridged Dictionary 1913 Edition