Definition of monsieur
messieursplay \məs-ˈyə(r)(z), məsh-, mās-; mə-ˈsir(z)\
: a Frenchman of high rank or station —used as a title equivalent to Mister and prefixed to the name of a Frenchman
Origin and Etymology of monsieur
Middle French, literally, my lord
First Known Use: 1512
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