Lewis Short
(adjective) : gentĭlīcĭus or -tĭus, a, um, gentilis.
* Of or belonging to a particular clan or gens (class.; cf. gentilis): an gentilicia sacra ne in bello quidem intermitti, publica sacra et Romanos deos etiam in pace deseri placet?Liv. 5, 52, 4; v. sacrum, under sacer: sacrificia, Auct. Or. de Harusp. Resp. 15: gentilicia (nota), opp. publica,Liv. 6, 20, 14: tumulus,a family sepulchre,Vell. 2, 119, 5: hereditates,Suet. Caes. 1: nomina,id. Claud. 25: M. Varro tradit, in Serranorum familia gentilicium esse, feminas linea veste non uti,Plin. 19, 1, 2, § 8; Plin. Ep. 6, 15, 1.
* Of or belonging to a nation, national (post-class.): vulgus, quos gentilicio vocabulo Chaldaeos dicere oportet, mathematicos dicit,by their national name,Gell. 1, 9, 6.
Charlton T. Lewis, Charles Short, A Latin Dictionary