[Middle English, the musical scale, from Medieval Latin gamma ut, low G : gamma, lowest note of the medieval scale (from Greek, gamma; see GAMMA) + ut, first note of the lowest hexachord (after ut, first word in a Latin hymn to Saint John the Baptist, the initial syllables of successive lines of which were sung to the notes of an ascending scale CDEFGA: Ut queant laxis resonare fibris Mira gestorum famuli tuorum, Solve polluti labii reatum, Sancte Iohannes).]