Plaisance Family History

from the medieval female personal name Plaisance, meaning ‘pleasantness’, a feminine form of the much rarer personal name Plaisant (present participle of Old French plaire ‘to please’), of common gender. habitational name from Piacenza in Italy, Latin name Placentia (see Piacentini). habitational name from any of a number of places so called in France. This name is found predominantly in LA.

Source: Dictionary of American Family Names ©2013, Oxford University Press