Borrowed from French mansionette ("little house").
mansionette (plural mansionettes)
- (US) A large and somewhat luxurious house.
- 2007 March 12, Alessandra Stanley, “For This Family of Pros, the Con Is Everything”, in New York Times:
- Trading in their battered RV and Louisiana swamplands for a sumptuous pink mansionette with swimming pool, the Malloys pull off their ruse with skill and also childish naïveté.
- (Britain) A flat that spans two or more floors, and often has its own entrance (i.e. not off a communal hallway).
- 2014, Eoin McNamee, Blue is the Night:
- gone to London to work and had left her mansionette flat empty. The mansionettes stood on high ground overlooking the docks.