She is happier,
She is more capable); superlative adjectives end in –est or are preceded by most (
most capable). English adverbs typically end in –ly (
happily). Adjective and adverb are Indo-European form classes; some non-Indo-European languages lack specialized classes with analogous functions.
See P. Roberts, Understanding Grammar (1954) and Modern Grammar (1968); E. Finegan and N. Besnier, Language: Its Structure and Use (1989).
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
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