Americanized form of French de Garmeaux, said to be from a place called Garmeaux in Normandy.
The name was established during the 17th century in the
Dutch settlement that
later became Albany, NY. Pierre Villeroy (1641–1739) had ten children, the first four of whom, born during the 1680s, were baptized as Villeroy, but
later all members of the family came to be known as Degarmeaux.