|ócior, swifter;||ócissimus, swiftest.|
|potior, preferable ;[The old positive potis occurs in the sense of able, possible.]||potissimus, most important.|
a. The following are formed from stems not used as adjectives:[The forms in -trá and -terus were originally comparative (cf. alter), so that the comparatives in -terior are double comparatives. Ínferus and superus are comparative of a still more primitive form (cf. the English comparative in -er). The superlatives in -timus (-tumus) are relics of old forms of comparison; those -mus like ímus, summus, prímus, are still more primitive. Forms like extrémus a superlatives of a comparative. In fact, comparison has always been treated with accumulation of endings, as children say furtherer and furtherest.] -
b. Of the following the positive forms are rare, except when used as nouns (generally in the plural): -
NOTE: The superlative postumus has the special sense of last-born, and was a well-known surname.