T / trĭentābŭlum
noun

trĭentābŭlum

gen. trĭentābŭli · gender neuter · decl. 2nd
a portion of public land assigned to creditors in place of a third part of the public debt
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.