proper noun/sɛ̃.t‿øs.taʃ.syʁ.lə.lak/
Saint-Eustache-sur-le-Lac is masculine in French.
a village in Quebec, Canada; former name of Deux-Montagnes (a town neighbouring the town Saint-Eustache and the lake Lake of Two Mountains)
From Saint-Eustache + lac, literally “Saint Eustace on the Lake”.