Triens

·noun A Roman copper coin, equal to one third of the as. ·see 3d As, 2.

triens
trĭens, entis, m. [tres], a third part, a third of any thing. I In gen.: cum sciemus, quantum quas...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
triens
triēns entis, m tres, a third part, third : cum sciemus, quantum quasi sit in trientis triente: cu...

An Elementary Latin Dictionary