riffle -- (shuffling by splitting the pack and interweaving the two halves at their corners)
Overview of verb riffle
The verb riffle has 4 senses
flick, ruffle, riffle -- (twitch or flutter; "the paper flicked")
flick, flip, thumb, riffle, leaf, riff -- (look through a book or other written material; "He thumbed through the report"; "She leafed through the volume")