Longman Dictionary of Contemporary English - lw

ly ~ suffix 1 (in adverbs) in a particular way  (He did it very cleverly. (=in a clever way) | walking slowly) 2 (in adverbs) considered in a particular way  (Politically speaking it was a rather unwise remark. | a financially sound proposal) 3 (in adjectives and adverbs) happening at regular periods of time  (an hourly check (=done every hour) | They visit monthly. (=once every month)) 4 like a particular thing in manner, nature, or appearance  (with queenly grace | a motherly woman (=showing the love, kindness etc of a mother))