senio

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

sēnĭo, ōnis, m. [seni],

the number six , a sice upon dice: talis jactatis, ut quisque canem aut senionem miserat, August. ap. Suet. Aug. 71; Pers. 3, 48; Mart. 13, 1, 6.