1911 Encyclopædia Britannica/Motto
MOTTO (an Italian word, from Late Lat. muttum, a low sound, a mutter or murmur, cf. mutere, to mutter; the Latin word also gives Fr. mot, word), a “legend” consisting of a significant phrase or sentence, sometimes even of a single word attached to an emblem or device, and, in heraldry, placed on a scroll below the achievement or above the crest. Mottoes express sometimes a sentiment, a favourite principle, emphasize the meaning or symbolism of the emblem or device, and, in heraldry, often allude to one or more of the “charges” in the coat of arms, &c.
There are many publications which give lists of some of the best-known mottoes, such as Fairbairn, Book of Family Crests, 1856; Wachbourne, Book of Family Crests (2 vols., 1882); Chassant and Tansin, Dictionnaire des devises historiques et héraldiques, &c. (1878); Dielitz, Die Wahl- und Denksprüche, Feldgeschreie, Losungen, Schlacht- und Volksrufe, besonders des Mittelalters und der Neuzeit (4 vols., 1888). Gatfield’s Guide to Printed Books and MSS. relating to Heraldry (1892) contains a bibliography.