In a floppy manner; with loose, drooping, or hanging movements.
Derived from 'floppy' (adjective) plus '-ly' adverbial suffix, converting an adjective into an adverb describing manner of action.
The '-ly' suffix (from 'like' in Old English) is one of the most productive word-forming tools in English—we add it automatically to adjectives to create manner adverbs, and this pattern is still actively generating new words.
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