Lusophone countries continue to exhibit both cultural and political affinities, expressed in the existence of the Community of Portuguese Language Countries (CPLP), created in 1996. The term "Lusophone" is a classical compound, whereby the combining form "Luso-" derives from the Latin term for an area roughly corresponding to modern Portugal, called Lusitania. The suffix "-phone" derives from the Ancient Greek word φωνή ("phōnē"), meaning "voice". The use of the term Lusophone mirrors similar terms, such as Anglophone for English-speakers, Francophone for French-speakers, Hispanophone for Spanish-speakers, and Russophone for Russian-speakers. The term is sometimes used in reference to the Community of Portuguese
Proto-language system of isoglosses which held together dialects which were spoken by various tribes, from which the historically attested Indo-European languages emerged. Proto-language A proto-language, in the tree model of historical linguistics, is a language, usually hypothetical or reconstructed, and usually unattested, from which a number of attested known languages are believed to have descended by evolution, forming a language family. In the strict sense, a proto-language is the most recent common ancestor of a language family, immediately before the family started to diverge into the attested "daughter languages". It is therefore equivalent with the "ancestral language" or "parental language" of