This thesis begins from the initial view that grammaticalization is restricted to tract on lexical or discoursive items that become grammatical items (what would insert it into the Theory of Change, insert into the Sociolinguistics Research), but goes towards an epistemological leap which reshape that perspective, expanding it to the level where it can be seen as an autonomous theory, investigating borderline phenomena between the language and specific languages, speech and text, description and prescription, orality and literacy, vocabulary and grammar. Thus, it intends to show the possibility of the epistemological view of the subject, conducted hitherto purely on an ontological way, restricted to one (and only one) of the many spectra that can be achieved with the expansion alluded, which should be expanded to a general theory, which is the General Theory of Grammaticalization: its overall goal. For this purpose, it is necessary to go to the view of philosophers of language who served on the human faculty or capacity directly or indirectly from its Western origins (such as Socrates, Plato and Aristotle), through the thinkers most pointedly concerned with the cognitive aspects and interactive language and specific languages (as Hegel, Husserl, Saussure, Sapir, Bloomfiled, Wittgenstein, Derrida, Chomsky, Labov, Charaudeau, Maingueneau, Ducrot, Coseriu). The incursion in the Grammaticography will also be required (as undertaken by Dionysius of Thrace, boar, Arnault and Lancelot, Nebrija, Jerome Soares Barbosa, Carlos Eduardo Pereira, Said Ali, Bechara), as well as the philosophical contribution of the researchers on the grammaticalization (as Meillet, Vendryes, Breal, Kurilowicz, Traugott , Heine, Hopper, Lehmann). Since it has been shown to be believable to accept it as a standalone grammaticalization theory , this thesis intends to bequeath his instrumental role in helping many among which we hereby undertake when it comes to research methodology in fields whose occupation is the language and specific languages: its specific goal . For this duplicity goals or objectives , it is necessary to understand concepts , categories and prototypes derived from the philosophy of science (epistemology), the contrast between the language sciences and other branches of learning, immersion in Grammaticology and Grammaticography (and, in some respects, in grammatization and Grammatology ) for the Portuguese language, defending, finally, that the teaching of formal (or normative ) grammar language favors the reflective and active sense of uses or acts that the specific languages can only achieve when they go to the the field of language in all its epistemological possibilities that generates communication and expressiveness, reasoning and emotion, going from the concreteness of speech or of orality to abstraction, which is represented by writing, that not excludes the substantiality that dialogues with unrelenting in its constant dialectic and past-future or homogeneity-diversity (thesis and antithesis), where is its present or its unity (synthesis).
