Etymology

From Old French gai ‎(“happy; cheerful; gay”), from Old Provençal gai ‎(“happy; joyous”), from Gothic 𐌲𐌰𐌷𐌴𐌹𐍃 ‎(gaheis, “impetuous”) or from Frankish *gāhi ‎(“fast, sudden, impetuous”), *wāhi ‎(“pretty”) or from Latin vagus ‎(“wandering, inconstant, flighty”).