v.
   - put (a dry substance) through a sieve so as to remove lumps or large particles.
 - cause to flow or pass as through a sieve. 
▸(of snow, light, etc.) descend lightly or sparsely as if sprinkled through a sieve.
 - examine thoroughly so as to isolate that which is most important.
 
n.
 an act of sifting.
 
  Derivative
  
    - sifted adj.
  - sifter n.
  - sifting n.
 
   
  Etymology
  OE siftan, of W. Gmc origin; rel. to sieve.