Definition
A Latin phrase meaning "to the disinheritance" or "to the disherison." It appears as a term of art in the writ of waste, a common law pleading form used to compel a tenant to answer for destruction or damage done to property held by lease or life estate. The phrase describes the nature of the harm alleged: that the tenant's waste diminishes the inheritance — that is, it injures the reversionary interest of the heir or remainderman who stands to receive the property upon the tenancy's end. The writ calls on the tenant to show cause why he has committed waste and destruction in the named place "ad exhereditationem," to the disinheritance of the party holding the future interest.
Common Confusion
Ad exhereditationem describes the consequence or injury alleged — damage to the inheritance — not a cause of action in itself. Researchers should not confuse it with disinheritance in the testamentary sense (a testator cutting off an heir by will). The phrase operates exclusively in the procedural context of the writ of waste and refers to harm to a reversionary or remainder interest in land, not to any act of estate planning or will-making.
Why It Matters in Research
This phrase is almost entirely a fossil of common law pleading practice. It will appear in its functional context — the writ of waste — in early English common law sources, Blackstone, and Fitzherbert's Natura Brevium, not in modern pleading codes. Researchers working in American legal history before the procedural reforms of the nineteenth century (particularly before the Field Code of 1848 and its successors abolished the old forms of action in most states) may encounter this phrase in writs, pleading manuals, and older treatises.
The key research trap is scope: ad exhereditationem was not a standalone writ or action but a descriptive clause within the writ of waste. Its presence in a document tells the researcher that the underlying dispute concerned waste by a tenant — a life tenant, leaseholder, or tenant in dower — against the interests of a reversioner or remainderman. Searching this phrase alone will not locate the broader body of waste doctrine; researchers should pivot immediately to "writ of waste," "waste (property law)," and the older action of "quod permittat" or "assise of waste" for the full picture.
Because the forms of action were largely abolished in American federal practice by 1938 (Federal Rules of Civil Procedure) and earlier in many states, ad exhereditationem as a live phrase effectively disappears from American legal documents after the mid-nineteenth century. In English legal sources it persists longer in treatise literature even after practical abolition of the forms. Historical legal dictionaries — including Bouvier's — preserve it as a reference term for readers navigating old pleadings and reports rather than as a term of current practice even at the time of their writing.
No meaningful jurisdictional variation exists in the modern sense because the phrase has no modern operative life. Variation in its historical significance tracks the timing of procedural reform in each American state.
Historical Dictionary Support
Bouvier's Law Dictionary is the sole source among standard American legal dictionaries to carry this phrase, and its treatment is appropriately brief. Bouvier defines it by reference to Blackstone's Commentaries (Book III) and Fitzherbert's Natura Brevium — the two foundational English sources for the writ of waste — making clear that the phrase belongs to the procedural vocabulary of the writ rather than to substantive inheritance law. Bouvier's entry does not attempt a broader doctrinal discussion, which is appropriate given the phrase's narrow, formulaic function.
Neither Black's Law Dictionary in its earlier editions nor other standard American reference works treat ad exhereditationem as a separate entry, reflecting its status as a clause of art rather than a freestanding legal concept. Researchers should expect to find fuller treatment of the surrounding doctrine (waste, reversionary interests, the writ) in Blackstone and in English common law pleading manuals rather than in American legal dictionaries.