grist (gr?st)n.1. Grain or a quantity of grain for grinding.2. Ground grain.Idiom: grist for (one’s)/the mill Something that can be used to advantage.[Middle English, from Old English gr?st; see ghrendh- in Indo-European roots.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.grist (?r?st) n1. (Agriculture) a. grain intended to be or that has been groundb. the quantity of such grain processed in one grinding2. (Brewing) brewing malt grains that have been cleaned and cracked3. grist to the mill grist to one’s mill grist for the mill grist for one’s mill anything that can be turned to profit or advantage[Old English gr?st; related to Old Saxon grist-grimmo gnashing of teeth, Old High German grist-grimm?n]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014grist (gr?st) n. 1. grain to be ground. 2. ground grain; meal produced from grinding. 3. a quantity of grain for grinding at one time; the amount of meal from one grinding. 4. Older Use. a quantity or lot. Idioms: grist for or to one’s mill, something used to one’s profit or advantage, esp. something seemingly unpromising. [before 1000; Middle English, Old English; akin to Old English grindan to grind] grist?er, n. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.Grist a lot; a number; a quantity; a supply for an occasion; the grain which is to be ground at the mill.Examples: grist of bees, 1848; of corn [awaiting grinding], 1483; of flies; of grain [amount carried to the mill at one time]; of hope, 1623; of meal; of rain, 1840.Dictionary of Collective Nouns and Group Terms. Copyright 2008 The Gale Group, Inc. All rights reserved.