Definition
A testatrix is a woman who makes a valid will, or who dies leaving a valid will in effect. The term is the feminine form of testator. In modern legal usage, testatrix and testator are functionally identical in meaning — the distinction is solely grammatical, marking the sex of the person who executed the will.
Why It Matters in Research
The primary research significance of testatrix is terminological, not substantive. Researchers working in historical sources — case law, probate records, treatises, and digests predating the late twentieth century — will encounter testatrix routinely wherever a female decedent left a will. Failing to search for both testator and testatrix when mining historical indices, digests, and full-text sources will produce incomplete results.
Modern legal drafting and statutory language in most common law jurisdictions has moved to gender-neutral terminology. Statutes, rules, and contemporary opinions are more likely to use "testator" as a generic term covering all persons, or to use gender-neutral phrasing ("the person making the will," "the decedent"). A researcher using only the modern generic form when searching historical materials will miss cases and documents that used testatrix as the operative term of art.
The shift away from gendered legal terms accelerated in the latter half of the twentieth century alongside broader statutory gender-neutralization efforts. In some jurisdictions this was accomplished by explicit statutory redefinition; in others, by judicial convention or drafting practice. When researching the law governing wills executed by women in earlier periods, testatrix is the controlling term in the primary sources, and understanding this is essential for accurate retrieval.
No substantive legal difference attached to the term itself — the capacity requirements, formal execution requirements, and testamentary rules applied equally to testatrix and testator. The term carried descriptive, not doctrinal, weight.
Historical Dictionary Support
The historical dictionaries are in full agreement on the core definition. Black's (both editions), Bouvier's, and Burrill's all define testatrix as a woman who makes or has made a will, or who dies leaving a will — a female testator. There is no divergence among sources on meaning, scope, or application.
Burrill's is the most precise in framing, noting the term as the feminine of testator and capturing both the act of making and the condition of dying testate. Bouvier's entry transitions mid-paragraph to a separate entry for testatum, reflecting a common indexing convention of the period rather than any substantive connection between the two terms.
None of the historical sources address the eventual obsolescence of the gendered form or the transition to gender-neutral drafting — a gap that is unsurprising given their publication dates but worth flagging for researchers who might treat the historical dictionaries as descriptive of current usage.
Jurisdictional Note
Most U.S. jurisdictions and modern Commonwealth legal systems have moved to gender-neutral statutory language, treating "testator" as inclusive regardless of sex. Some older uniform acts and state codes retain testatrix in unrepealed provisions. Researchers should check the operative statute for the jurisdiction and period in question.