Posted by Rube on June 10, 2004
In Reply to: Re: Gris to the mill posted by SR on June 10, 2004
"Grist was the abrasive grit which was added to wheat when it was ground between grinding stones to help the flour grind more quickly."
Do you have a source for this? After reading your post, I looked in Websters II New Collegiate dictionary and they agree with me that grist is grain.
It wouldn't make sense for the saying, if grist was an additive that didn't yield a profitable substance, but was rather an additional expense, slight as it might have been.