Trav-el, taith, ymdaith; teithio
Trav-erse, cwyn; gwrthdro; ymgroes: trawsymdeithio
Trea-cle, triagl
Trea-son, brad, bradwriaeth
Treas-ure, trysor: trysori
Treat-ise, traethawd, traith
Treat-ment, triniaeth, triniad
Treat-y, cynnadledd, cytundeb
Treb-le, meinllais; tridyblyg: tridyblygu
Trel-lis, delltwaith, cledrwaith