Gallaecus
Could not find Callaicum in Logeion dictionaries.
Callaicum Proper-name adjective: neuter vocative singular, Proper-name adjective: masculine genitive plural, Proper-name adjective: masculine accusative singular, Proper-name adjective: neuter genitive plural, Proper-name adjective: neuter nominative singular, Proper-name adjective: neuter accusative singular of Gallaecus
Callaicum Proper-name noun: masculine genitive plural of Gallaeci
Gallæcus, a, um, de Gallécie ; le Gallécien [vainqueur des Gallèces] : Vell. 2, 5 ; v. Callaicus.