Dumesnil Family History
Dumesnil Name Meaning
French: topographic name with fused preposition and definite article du ‘from the’ from Old French mesnil ‘country house’ (from Late Latin mansionile a diminutive of mansio ‘dwelling’) denoting someone who lived in a (small) country house or a habitational name for someone from one of several minor places called Le Mesnil mainly in the northern part of France.
Source: Dictionary of American Family Names 2nd edition, 2022