What does gramma mean in Latin?

gramma, a noun, means “gram (unit of mass)”.

What is the genitive of gramma?

The genitive singular is grammatis. gramma is neuter, third declension.

In classical Latin, [ˈɡram.ma]; in ecclesiastical (church) Latin, [ˈɡram.ma].

noun · neuterthird declension

gramma n (genitive grammatis)

Classical[ˈɡram.ma]Ecclesiastical[ˈɡram.ma]

gramma, ae, f., = γραμμή,

I. a line in writing, a stroke of the pen (post-class.), Macr. Somn. Scip. 1, 5; App. Herb. 108.

gramma, ătis, n., = γράμμα,

I. a weight of two oboli, Fann. de Pond. 8; 25.