riffle
UK: ˈrɪf(ə)l | US: ˈrɪf(ə)l
n. 1. A shallow or rapid part of a stream where the water flows brokenly over rocks.
vt. 2. To shuffle (playing cards) by dividing the deck into two parts and sliding the thumbs to release the cards alternately.
vi. 3. To flip or browse through something quickly (e.g., pages of a book).
The word "riffle" originated in the 18th century, initially describing the disturbed flow of water over rocks, akin to "scratching" the surface. The verb sense evolved to describe the rapid, repetitive motion of shuffling cards or flipping pages, mirroring the water's agitation. The morpheme riff captures the idea of disruption, while -le emphasizes the repeated action.
The canoe tipped slightly as it crossed the rocky riffle.
She riffled the deck of cards expertly before dealing.
He riffled through the old manuscript, searching for clues.
The river’s riffle sparkled under the midday sun.
A gentle riffle of wind stirred the autumn leaves.