The definition of a quag is a shortened version of quagmire, with means a bog or wet area covered in rotting plants.
(noun)An example of a quag is a marsh in the English countryside.
See quag in Webster's New World College Dictionary
noun
Origin: < ?
See quag in American Heritage Dictionary 4
noun
Origin:
Origin: Perhaps variant of Middle English quabbe
Origin: , from Old English *cwabba
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