Triad, n. a forming into three
Triannol, a tertian, tradic
Triannu, v. to tertiate
Triarbymtheg, a. eighteen
Triarddeg, a. thirteen
Triban, n. a triplet, metre
Tribaniaeth, n. triplicity
Tribanu, v. to triplicate
Tribedd, n. a tripod, a trivet
Trichanmil, a. three hundred thousand