testate

/T EH1 S T EY0 T/
noun
  1. 1

    One who has left a valid will and testament

adjective
  1. 1

    Having left a legally valid last will and testament (of one who has died).

adjective
  1. 1

    Having a test (external calciferous shell or endoskeleton)

Source: https://en.wiktionary.org/wiki/testate