flaw1
  
  n.
  - a mark, blemish, or other imperfection.
 - a fault or weakness.
 
v.
 mar or weaken.
 
  Derivative
  
    - flawed adj.
  - flawless adj.
  - flawlessly adv.
  - flawlessness n.
 
   
  Etymology
  ME (orig. in sense ‘a flake of snow’, later, ‘a fragment or splinter’): perh. from ON flaga ‘slab’.
 
  
    
flaw2
  
  n.
 literary a squall; a short storm.
 
  Etymology
  C16: prob. from MDu. vlāghe, Mid. Low Ger. vlāge.