Pronunciation: ' gre-sh ə mz-
Function: noun
Etymology: Sir Thomas Gresham
Date: 1858
: an observation in economics: when two coins are equal in debt-paying value but unequal in intrinsic value, the one having the lesser intrinsic value tends to remain in circulation and the other to be hoarded or exported as bullion broadly : any process by which inferior products or practices drive out superior ones