trĭentābŭlum, i, n. [triens],
a portion of public land assigned to creditors in place of a third part of the public debt : trientabulumque is ager, quia pro tertiā parte pecuniae datus erat, appellatus, Liv. 31, 13, 9.
trientābulum ī, n * triento, from triens, land assigned in commutation of one third of a public de...
An Elementary Latin Dictionary