LSJ Gloss:σινιάζωto sift, winnowDodson:σινιάζωI sift, prove by trialsI sift, prove by trials, winnow.
Thayer:1) to sift, shake in a sieve 2) fig. by inward agitation to try one's faith to the verge of overthrow
σινιάζω σινιάζω siniazō {\\Language:English } sin-ee-ad'-zo From σινιον sinion (a sieve); to riddle (figuratively)KJV Usage: sift.