nounexprōmissorEXPROMISSOR☆ KeepMeaningone who promises to payLewis & Short 1879ModernAs printed, 1879EXPROMISSORLEWIS & SHORTEXPROMISSORexprōmissor, ōris, m. expromitto, I. one who promises to pay either for himself or for another (in jurid. Lat.), Dig. 18, 1, 53; 42, 1, 4 et saep.Read the whole entry