Agrĭgentum — Lewis & Short
Agrĭgentum, i, n.,
oppidum Acragas, quod Agrigentum nostri dixere,Plin. 3, 8, 14, § 89:
alia judicia Lilybaei, alia Agrigenti restituta sunt,Cic. Verr. 2, 2, 26.—Hence, Agrĭgentīnus, a, um, adj., of or from Agrigentum:
sal,Plin. 31, 7, 41, § 85.—Subst.: Agrĭgentīni, ōrum, m., the inhabitants of Agrigentum, Cic. Verr. 2, 2, 50.