intestate

Intestate was borrowed into English in the 14th century from Latin intestatus, which was itself formed by combining the prefix in- ("not") and the adjective testatus, meaning "having left a valid will." Testatus, in turn, derives from the past participle of the verb testari, meaning "to make a will." Approximately a century later, English speakers returned to testatus to coin the word testate, which also means "having left a valid will." Other descendants of testari in English include detest, protest, and testament, as well as testator ("a person who dies leaving a will or testament in force"). The antonym of testator is the noun intestate, meaning "one who dies without a will."