sestertium Hear it!

sestertium Definition

ses·ter·tium (ses tʉr′s̸hē əm, -s̸həm)

noun pl. -·tia-s̸hē ə, -s̸hə

a monetary unit of ancient Rome, equal to 1,000 sesterces

Etymology: L < (mille) sestertium, gen. pl. of sestertius: see sesterce