What does disinherison mean?
Disinherison is the act or condition of depriving someone of an inheritance, most commonly through an explicit provision in a will that excludes them from receiving property they might otherwise have expected to receive. The term belongs chiefly to legal language, where it describes a formal severing of a person's claim to an estate, and it carries connotations of finality, judgment, and often family rupture — to suffer disinherison is not merely to lose property but to be formally cast out of a line of succession. In everyday speech the word has largely given way to its more common synonym "disinheritance," so encountering "disinherison" usually signals legal, historical, or literary writing. It remains useful precisely because it names both the deed (a testator's act) and the resulting state (an heir's exclusion) in a single precise term. Related forms include the verb "disinherit" and its derivatives, all built on the root shared with "heir," "heritage," and "inherit."
nounThe act or fact of depriving someone of an inheritance, especially by a deliberate provision in a will; the state of having been disinherited.
- The act of deliberately depriving someone of an inheritance, typically through the terms of a will.
- The condition or state of having been deprived of an inheritance.
"His disinherison followed the bitter quarrel over the family estate."
"The court upheld the father's disinherison of his eldest son, who had signed away any claim to the farm."
"In many jurisdictions, a spouse cannot be left penniless merely by disinherison in a will."
Rarely used in the plural, as the word typically denotes a specific act or condition; plural forms appear mainly in historical or legal texts discussing multiple cases.
"The archives record several disinherisons carried out during the protracted dispute over the earldom."
Long before modern will contests, "disinherison" was the formal word for being struck from a family's line of heirs — a legal fate once considered nearly a social death sentence.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of disinherison
Disinherison derives from the verb "disinherit," formed from the prefix "dis-" (expressing reversal or deprivation) combined with "inherit," which entered English via Old French "enheriter" from Late Latin "hereditare," ultimately rooted in Latin "heres" (heir). The noun ending "-son" reflects Old French nominal patterns also seen in words such as "comparison." The term came into English through Anglo-Norman legal usage, where precise vocabulary for succession and inheritance was essential.
Related word forms
How disinherison is actually used
"Disinherison" belongs primarily to legal and formal registers and appears most often in older legal texts; in general writing, "disinheritance" is the standard choice today.
Easily confused with disinherison
"Disinheritance" is the far more common everyday word for the same act, while "disinherison" is a chiefly legal and somewhat archaic term for the same thing.