riffle
verb
[ ˈrɪf(ə)l ]
• turn over something, especially the pages of a book, quickly and casually.
• "he riffled through the pages"
• shuffle (playing cards) by flicking up and releasing the corners or sides of two piles of cards so that they intermingle and may be slid together to form a single pile.
• "he riffled the deck of cards"
riffle
noun
• an act or sound of riffling through something.
• "just a riffle through the books"
• a rocky or shallow part of a stream or river where the water flows brokenly.
• "the river's sweeping riffles and deep pools provide a superb habitat for salmon"
Origin:
late 18th century (in riffle (sense 2 of the noun)): perhaps from a variant of the verb ruffle, influenced by ripple.
