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mon·sei·gneur | \ ˌmōⁿ-ˌsān-ˈyər 
\
\ plural messeigneurs\ ˌmā-ˌsān-ˈyər(z) \
\Definition of monseigneur
: a French dignitary (such as a prince or prelate)
—used as a title preceding a title of office or rank
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Time Traveler for monseigneur
The first known use of monseigneur was in 1561
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