Livery refers to distinctive clothing or symbols indicating ownership, affiliation, or rank, historically worn by attendants or adherents of aristocratic families. Ranging from medieval heraldic crests to contemporary business attire, it mirrors social structures and organizational identity. Sabine Baring-Gould observed its application in stables, while Thorstein Veblen examined its connection to subordination.
Although frequently associated with household service, livery also includes heraldic insignia and uniform corporate styles, as evident in royal courts and maritime uniforms. Its transformation from feudal markings to standardized appearance highlights its continued function in expressing status and loyalty across different periods.