Dictionary![]() ![]() -ly1. a suffix forming adverbs from adjectives: gladly; gradually; secondly. 2. a suffix meaning “every,” attached to certain nouns denoting units of time: hourly; daily. 3. an adjective suffix meaning “-like”: saintly; cowardly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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