-tania
The suffix -tania or -etania (English demonym "-tanian", "-tanians") denotes a territory or region in the Iberian Peninsula. Its historical origin is in the pre-Roman Iberia. Its etymological origin is discussed by linguists. Spanish Jesuit philologist Hervás y Panduro proposed their link to the Celtic languages, in which the root *tan or *taín means department or region. "In Irish, tan (genitive, tain) expresses the idea of country, territory."