Resumen de Bocado: scalar semantics and polarity sensitivity
This paper traces the developments of the noun bocado as it participates in two polarity-sensitive constructions in the history of Portuguese: the minimizer bocado ‘[not even] a bit’, a negative polarity item in Old Portuguese, and the degree adverbial um bocado ‘a bit’, which emerges in the 1700 s and is a positive polarity item. I adopt Israel’s (2011) grammar of polarity based on two lexical features, a quantitative value (q-value) and an informative value (i-value), in order to analyze the properties of these constructions as they reveal the interaction between lexical meaning and the logic of scalar reasoning. By applying this model in diachrony, I show how the logic of pragmatic scales underlies the patterns observed: a low q-value (lexical meaning) constrains the possible contexts of use of the expression in terms of the informativity of the propositions conveyed. Diachronic studies can thus shed light on the types of meaning associated with scalar terms as well as on types of scalar items.
