gamme \ˈgam\noun (-s) Etymology: French, from Old French game, from Medieval Latin gamma, from Late Latin, third letter of the Greek alphabet; from the use of the letter gamma by Guido d'Arezzo died 1050? Benedictine monk and musical reformer to represent the lowest note of the gamut : gamut < produces a gamme of sounds that are beautiful — Janet Flanner > < a recurrent gamme of color — Helen Gardner >