Subsellium

·noun One of the stalls of the lower range where there are two ranges. ·see ·Illust. of Stall.

subsellium
subsellĭum, ii, n. [sub-sella], a low bench (quod non plane erat sella, subsellium, Varr. L. L. 5, §...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
subsellium
subsellium ī, n sub+sella, a low bench, seat, form : ista subsellia vacuefacta sunt (in the senate...

An Elementary Latin Dictionary