cor-rŏtundo

āvi, ātum, 1
I. v. a., to make round, to round off (postAug.).
I. Prop.: cometarum corpus, Sen. Q. N. 7, 26, 2; 4, 3, 5; Petr. 39, 15.—
B. Trop.: enthymemata sua gestu velut corrotundant, Quint. 11, 3, 102.—*
II. Transf., of money (cf. rotundo, and our phrase, a round sum), to make up a sum of money: centies sestertium, Petr. 76, 8.
Lewis & Short
A Latin Dictionary, 1879
An open-access project