The name is possibly of Etruscan origin and its meaning has been lost to history.
Mater Matuta was a pre-Roman (Etruscan) goddess of grain who later became associated with Aurora, the goddess of the dawn. She was the patron goddess of newborn babies, the sea and of harbors.
Her festival was held on June 11th. Known as the Matralia only women who were in their first marriage were allowed to attend the festival.