Artificial intelligent assistant

expromissor

expromissor Civil Law.
  (ɛksprəʊˈmɪsə(r))
  Also 8 expromissar.
  [a. L. exprōmissor, agent-n. f. exprōmittĕre to promise to pay, f. ex- (see ex- prefix1) + prōmittĕre to promise.]
  One who promises to pay; spec. one who unconditionally undertakes the debt of another, so as to become the principal debtor in his stead; distinguished from a ‘surety’ or ‘bail’.

1695 S. Lobb Let. Dr. Bates 12 You distinguish between the Covenant of Grace, and the Covenant of Redemption, and grant Christ to be a Surety in the One and an Expromissor in the other. 1775 Ash, Expromissar. 1818 Colebrooke Treat. Oblig. & Contracts I. 211 The ex-promissor, who is to undertake the debt. 1875 Poste Gaius iii. Comm. (ed. 2) 406 A woman does not, like an Expromissor, discharge a pre-existing obligation.

Oxford English Dictionary

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