Superlative of Adjectives
The comparative is based on the third declension. Distinctions arise that affect the consonance of the end of adjectives.
Most adjectives from first or second declension:
uast-issimus, f. uastissima (most vast, widest)
Many adjectives from second declension whose stem ends in a liquid:
pulcher-rissima, m. pulcherrimus (most beautiful,
most handsome)
Few irregular adjectives having an ancient form:
max-imus, < *mag-simus (greatest)
Notes on the Superlative
1. The superlative’s complement is expressed in Latin either using the
genitive:
Romanorum prudentissimus (the most careful of Romans)
2. ...or the ablative:
e Romanis prudentissimus (of [all] Romans, the most careful)
and similarly, ...
altissima arborum or
altissima ex arboribus (the tallest of trees)