• synonyms


[prom-uh-sawr, prom-uh-sawr]
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noun Law.
  1. a person who makes a promise.
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Origin of promisor

First recorded in 1840–50; promise + -or2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples

British Dictionary definitions for promisor


  1. contract law a person who makes a promiseCompare promisee
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for promisor


1790, agent noun in Latin form from promise (v.). Apparently restricted to legal use.

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Online Etymology Dictionary, © 2010 Douglas Harper