Denault Family History
Denault Name Meaning
from a northern form of Daniel, in which the final syllable -(i)el has been vocalized in Picard, and the Naams and Liège dialects. northern habitational name, with the preposition d(e), for someone from Hainault (French Hainaut, Dutch Henegouwen). perhaps a variant of Denau(x), from a southern word meaning ‘ship’ (Latin navis). possibly a variant spelling of Daignault.
Source: Dictionary of American Family Names ©2013, Oxford University Press