In the rigorous tradition of English heraldry, a motto is a concise statement intended to encapsulate the character, aspirations, or historical allegiances of a noble house. Unlike the hereditary shield or crest, which are subject to the strict governance of the College of Arms and the Court of Chivalry, mottos are generally non-hereditary and can be assumed or altered at the discretion of the armiger. They are typically displayed on a scroll (or 'escutrol') either beneath the shield or, in Scottish practice, above the crest, serving as a verbal complement to the visual symbolism of the achievement.
Historically, mottos evolved from two distinct sources: the 'cri de guerre' (war-cry) used to rally troops on the medieval battlefield, and the 'mot' or 'word' adopted by knights during tournaments to signal romantic or philosophical themes. By the Tudor period, the use of mottos became standardized among the peerage and gentry, often employing complex puns (canting mottos) on the family name or referencing specific deeds of service to the Crown. While most are rendered in Latin for its perceived permanence and scholarly dignity, others appear in Norman French or English, reflecting the linguistic shifts of the British aristocracy.