342. Comparatives and superlatives are usually formed from the stem of
the positive: as, #dignior#, _worthier_, #dignissimus#, _worthiest_,
from #digno-#, stem of #dignus#. A few are formed directly from roots:
thus, #maior#, _greater_, and #maximus#, _greatest_, are formed from the
√#mag-#, and not from #magno-#, stem of #magnus#.
(1.) COMPARATIVE #-ior#, SUPERLATIVE #-issimus#.
343. The nominative of comparative adjectives ends usually in #-ior#,
and that of superlatives in #-issimus#: thus,