Unitario
/ˌjuːnɪˈtɑːrɪəʊ/Now historical. Chiefly in plural
noun
In Argentina in the early and mid 19th cent.: an advocate or supporter of a centralized (rather than devolved or federal) system of government.
Origin
Mid 19th century; earliest use found in The Morning Post. From American Spanish unitario, specific use of Spanish unitario unitary.