Trĭmontĭum, ii, n.,
a later name of the city Philippopolis in Thrace , Plin. 4, 11, 18, § 41.
TRIMONTIUM(Τριμόντιον, Ptol. 2.3.8), a town of the Selgovae, in Britannia Barbara, probably near Lon...
Dictionary of Greek and Roman Geography