What is the meaning of Cestus?

A leather fighting glove, frequently weighted with metal.

A girdle, especially that of Aphrodite (or Venus) which gave the wearer the power to excite love.

a girdle, tie, band or strap worn around the upper body, directly under the breast

the girdle of Aphrodite or Venus

boxing glove; a strip of leather, weighted with iron or lead, tied to a boxer's hands

Source: wiktionary.org