circumvectĭo, ōnis, f. [circumveho] (only twice in Cic.).
I A carrying around (of merchandise), Cic. Att. 2, 16, 4.—
II Solis, the circuit , revolution , Cic. Univ. 9, 26.
circumvectiō ōnis, f circumveho, a carrying around —Solis, the circuit, revolution . ...
An Elementary Latin Dictionary