Definify.com
Webster 1913 Edition
Grist
1.
Ground corn; that which is ground at one time; as much grain as is carried to the mill at one time, or the meal it produces.
Get grist to the mill to have plenty in store.
Tusser. Q.
2.
Supply; provision.
Swift.
3.
In rope making, a given size of rope, common grist being a rope three inches in circumference, with twenty yarns in each of the three strands.
Knight.
All is grist that comes to his mill
, all that he has anything to do with is a source of profit.
[Colloq.]
– To bring grist to the maill
, to bring profitable business into one’s hands; to be a source of profit.
[Colloq.]
Ayliffe.
Webster 1828 Edition
Grist
GRIST
,Noun.
1.
Properly, that which is ground; hence, corn ground; but in common usage, it signifies corn for grinding, or that which is ground at one time; as much grain as is carried to the mill at one time or the meal it produces. Get grist to the mill to have plenty in store.
2.
Supply; provision.3.
Profit; gain; [as in Latin emolumentum, from molo, to grind;] in the phrase, it brings grist to the mill.