sorry crispy-by, just reacting here to the notion that it's any more than it is. and for the record, gram is from the Greek word for for 'a small weight' (the L. gramma is the closest I can come), and grammar comes from classical L. and Gr. (grammatica in L.) denoting the methodical study of literature.

and so (misleadingly) it's not to be confused with grandmother/grandma/gramma/gram(s) either. : )