(2) Words terminating in s surd or sonant and in x anciently formed their plural by adding to the singular the syllable es (bras, brasses; pres,, preses; maleix, maleixes), but subsequently, from about the 15th centui-v, the Castilian influence substituted Os, so that one now hears brrissos, presos, ma~eixos.
The substitution of these interdental and guttural sounds for the surd and sonant spirants respectively did certainly not take place simultaneously, but the vacillations of the old orthography, and afterwards the decision of the Spanish Academy, which suppressed x (= I; x was retained for cs) and allows only c and g before e and i, I and j before a, a, a, make it impossible for us to follow, with the help of the written texts, the course of the transformation.
One of the most notable differences between normal Portugiiese and Gahician is the substitution of the surd spirant in place of the sonant spirant for the Lat.
As for v, it has a marked tendency to become confounded, especially as an initial letter, with the sonant explosive b; Joseph Scaligers punbibere est vivere--is applicable to the Castilians as well as to the Gascons.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.