▁group ▁of ▁tribes , ▁who ▁lived ▁in ▁the ▁Belg ic ▁part ▁of ▁Ga ul , ▁during ▁the ▁times ▁of ▁the ▁Roman ▁Empire . ▁Within ▁the ▁Roman ▁Empire , ▁their ▁territory ▁was ▁called ▁the ▁C iv itas ▁Tun gr orum . ▁They ▁were ▁described ▁by ▁T ac it us ▁as ▁being ▁the ▁same ▁people ▁who ▁were ▁first ▁called ▁" G erm ani " ▁( G erman ic ), ▁meaning ▁that ▁all ▁other ▁tribes ▁who ▁were ▁later ▁referred ▁to ▁this ▁way , ▁including ▁those ▁in ▁Germania ▁east ▁of ▁the ▁Rh ine ▁river ▁were ▁named ▁after ▁them . ▁More ▁specifically , ▁T ac it us ▁was ▁thereby ▁equ ating ▁the ▁T ung ri ▁with ▁the ▁" G erm ani ▁C is r hen ani " ▁described ▁gener ations ▁earlier ▁by ▁Julius ▁Ca esar . ▁Their ▁name ▁is ▁the ▁source ▁of ▁several ▁place ▁names ▁in ▁Belg ium , ▁Germany ▁and ▁the ▁Netherlands , ▁including ▁T ong eren , ▁T ong er lo ▁Ab bey , ▁and ▁T ong el re . ▁ ▁Orig ins ▁In ▁a ▁comment ▁in ▁his ▁book ▁Germania , ▁T ac it us ▁remarks ▁that ▁Germ ani ▁was ▁the ▁original ▁trib al ▁name ▁of ▁the ▁T ung ri ▁with ▁whom ▁the ▁Ga uls ▁were ▁in ▁contact ; ▁among ▁the ▁Ga uls ▁the ▁term ▁ ▁Germ ani ▁came ▁to ▁be ▁widely ▁applied . The ▁name ▁Germany , ▁on ▁the ▁other ▁hand , ▁they ▁say , ▁is ▁modern ▁and ▁newly ▁introduced , ▁from ▁the ▁fact ▁that ▁the ▁tribes ▁which ▁first ▁crossed ▁the ▁Rh ine ▁and ▁drove