Etymology
Borrowing from French gazon, from Middle French gazon, from Old French gason, wason (“piece of ground covered with grass, turf”), from Old Frankish *wasō (“ground, turf, sod”), from Proto-Germanic *wasô (“moisture; ground”), from Proto-Indo-European *wes- (“moist, damp, wet”). Cognate with German Wasen (“lawn”), German Low German Waas (“bundle of twigs”), Dutch waas (“haze, mist, film”).
Definitions & examples from Wiktionary (CC BY-SA 3.0).