Definition
A young animal of the horse species, male or female, not more than four years old. In legal contexts, the term carries this fixed age threshold and applies without regard to sex — a usage that departs from the term's more familiar restriction to male animals in common speech. The definition matters chiefly in property disputes, criminal prosecutions for theft, and contract cases where the description of livestock is at issue.
Common Language
Modern common usage (Wiktionary): Wiktionary's primary entries for "colt" as a common noun focus on the given name and place names transferred from the surname, reflecting how the word has narrowed in everyday use. In informal modern English, a colt is generally understood as a young male horse.
Historical common usage (Webster's 1913): "The young of the equine genus or horse kind of animals; sometimes distinctively applied to the male, filly being the female." Webster's also notes a secondary meaning: a young, foolish fellow; and a nautical instrument of punishment — a short knotted rope.
The gap between common and legal meaning is meaningful on one point: ordinary usage typically restricts "colt" to males, with "filly" as the female counterpart. The legal definition discards this sex distinction entirely. A female horse under four years old was a "colt" for purposes of a theft indictment or a contract description just as much as a male. Researchers reading historical pleadings or jury instructions should not assume the word signals the animal's sex.
Common Confusion
COLT vs. FOAL vs. FILLY: In common animal husbandry language, these terms subdivide by age and sex. "Foal" typically means any newborn equine; "filly" is a young female; "colt" is a young male. The legal definition collapses the sex distinction and imposes an age ceiling of four years as the operative boundary. Courts applying this definition were interested in whether the animal fell within the age class — and thus within the property description in an indictment — not in the animal's sex. Researchers should not read sex-specific implications into the word when it appears in historical legal instruments.
Why It Matters in Research
The practical stakes of this definition were sharpest in criminal prosecutions for horse theft, which were among the most heavily litigated livestock crimes in nineteenth-century American courts. An indictment that described stolen property as a "colt" had to match the animal actually taken, and age was the operative variable. Cases such as Mallory v. Berry (16 Kan. 295) and Pullen v. State (11 Tex. App. 91) arose precisely because the description in the charging instrument was challenged on this ground.
Researchers working in historical theft records, livestock sale contracts, or estate inventories should be alert to two things. First, an animal described as a "colt" is not necessarily male — the legal definition covers both sexes under four years. Second, an animal over four years described as a "colt" in a document may indicate either imprecise drafting or a jurisdiction that had not yet received or applied the standard definition. Either way, the discrepancy may have been litigable.
The Anderson's Dictionary of Law entry nominally filed under COLT is clearly a misfiled excerpt on the law of combinations and conspiracy — substantive content about COLT appears only as a cross-reference to HORSE. Researchers using Anderson's should not expect independent analysis here and should follow that cross-reference.
Historical Dictionary Support
Black's (both editions), Bouvier's, and the underlying English authority (Russell & Ryan, reported at Russ. & R. 416) agree precisely on the definition: horse species, either sex, not more than four years old. This is one of the more uniformly settled definitions across the historical dictionaries — there is no meaningful divergence between sources. The second edition of Black's adds American case citations where the first edition cited only the English reporter, suggesting the definition had migrated into U.S. doctrine by the time of the revision without modification.
What the historical dictionaries do not address is how courts handled borderline-age animals or how the four-year threshold was established in evidence — questions that required extrinsic proof (typically veterinary testimony) and appear in the case law rather than the dictionary literature.
Jurisdictional Note
The definition appears to have been received broadly across American jurisdictions without significant variation. The Kansas and Texas cases cited in Black's (2nd Ed.) confirm application in at least two distinct legal cultures. Researchers working in jurisdictions with extensive livestock statutes should check whether those statutes supplied a different or superseding definition for specific regulatory purposes.