[prom-uh-sawr-ee, -sohr-ee]


containing or implying a promise.
of the nature of a promise.
Insurance. of or noting agreements or representations stipulating what is required to take place after the issuance of a policy.

Origin of promissory

From the Medieval Latin word prōmissōrius, dating back to 1640–50. See promise, -tory1
Related formsprom·is·so·ri·ly, adverbnon·prom·is·so·ry, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for promissory

Historical Examples of promissory

British Dictionary definitions for promissory



containing, relating to, or having the nature of a promise
insurance stipulating how the provisions of an insurance contract will be fulfilled after it has been signed
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 promissory

mid-15c., from Medieval Latin promissorius, from Latin promissus, past participle of promittere (see promise (n.)). Promissory note recorded by 1670s.

Online Etymology Dictionary, © 2010 Douglas Harper