gura: break off
musuva: morsel of sadza taken in the hand when eating.
tozva: ease hunger only slightly
One who has had a morsel of sadza is better off than one who has had nothing.
Traditionally, sadza is eaten by breaking off a morsel with one’s hand and dipping it into the side-dish before eating.
To have something even if less than what is desired, is better than having nothing at all.