Definition
In law, SABLE is exclusively a term of heraldry denoting the color black as it appears on a coat of arms, shield, or other armorial bearing. It is one of the five heraldic tinctures classified as colors (the others being azure, gules, vert, and purpure). When blazoning by planetary symbolism, sable is designated Saturn; when blazoning by precious stones, it is designated diamond. In engraved or printed representations, sable is conventionally depicted by a dense crosshatching of horizontal and vertical lines.
The term carries no operative legal meaning outside of heraldic law and the law of arms — that is, the body of rules governing the grant, registration, and use of armorial bearings.
Common Language
Modern common usage (Wiktionary): A small carnivorous mammal (Martes zibellina) prized for its dark brown fur; the fur or pelt itself; a coat made from such fur; an artist's brush made from sable hair.
Historical common usage (Webster's 1913): The fur-bearing weasel-family animal; its valuable fur; mourning garments (generally plural); and the heraldic tincture black.
The gap is worth noting. In ordinary English — past and present — sable primarily calls to mind the animal, its fur, or the color black in a poetic or literary sense. In legal usage, the term is narrower and technical: it refers only to the heraldic tincture and has no application to the animal, the fur trade, or mourning dress. A researcher encountering sable in a legal instrument, pleading, or grant should read it as a color designation within an armorial context, not as a reference to the animal or its pelt.
Why It Matters in Research
Sable in the Law Mind corpus will appear almost exclusively in two contexts: grants of arms or letters patent conferring armorial bearings, and legal instruments describing or conveying property identified by heraldic symbols (such as seals, crests on signet rings, or livery). In older English documents — particularly patents of nobility, grants by the College of Arms, and related instruments from the medieval through early modern periods — armorial language including sable is operative description, not mere decoration. Misreading the tincture terms as ornamental prose rather than legally precise descriptors can cause a researcher to miss the exact identification of a coat of arms in dispute.
For American corpus materials, sable will appear rarely and almost always in one of two ways: historical documents reproducing English armorial grants that carried over into colonial property or identity claims, or in cases involving trademark, insignia, or organizational heraldry where courts have had occasion to construe armorial terminology. Neither context is common, but both require knowing that sable is a technical color designation with a fixed conventional meaning.
The crosshatching convention for engraving is practically useful: when reading reproduced seals, woodcuts, or engravings in historical documents, dense perpendicular-and-horizontal line patterns signal sable, which allows identification of armorial elements even in black-and-white reproductions lacking color.
There are no meaningful jurisdictional traps specific to sable beyond the general observation that heraldic law as a formal legal system is an English (and Scottish) institution; American law does not maintain an equivalent regulatory body, and American legal documents using armorial terminology are typically importing English heraldic convention rather than applying domestic heraldic law.
Historical Dictionary Support
All four historical sources agree precisely and substantially: Black's (both editions), Rapalje & Lawrence, and Bouvier's reproduce essentially identical language, tracing back to Wharton's Law Lexicon. This uniformity across the shelf reflects the narrow, fixed technical meaning of the term — there is no doctrinal evolution to chart, no jurisdictional divergence, and no interpretive controversy in the historical sources.
What the historical dictionaries do not address is any application of sable outside strict heraldic blazonry. None of the sources connects the term to the fur trade, to commercial law governing pelts (despite the fur-bearing animal sharing the name), or to property law more broadly. Bouvier's entry is the most complete in context, as its immediately following entry for SAC demonstrates that the Bouvier editors treated sable as a minor technical term requiring only a single-sentence core definition.
The citation to Wharton appearing in Black's (2nd Ed.), Rapalje & Lawrence, and Bouvier's refers to J.J.S. Wharton's Law Lexicon, a standard English legal dictionary of the nineteenth century. Researchers tracing the definition further back should consult Wharton directly.