aberration vs diversion

aberration

noun
  • The act of wandering; deviation from truth, moral rectitude; abnormal; divergence from the straight, correct, proper, normal, or from the natural state. 

  • The tendency of light rays to preferentially strike the leading face of a moving object (the effect underlying the above phenomenon). 

  • A typical development or structure; deviation from the normal type; an aberrant organ. 

  • A defect in an image produced by an optical or electrostatic lens system. 

  • The convergence to different foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of such rays from a single focus; a defect in a focusing mechanism that prevents the intended focal point. 

  • A mental disorder, especially one of a minor or temporary character. 

  • A small periodical change of the apparent positions of the stars and other heavenly bodies, due to the combined effect of the motion of light and the motion of the observer. 

  • A partial alienation of reason. 

  • A deviation of a tissue, organ or mental functions from what is considered to be within the normal range. 

diversion

noun
  • The act of diverting. 

  • A hobby; an activity that distracts the mind. 

  • A detour, such as during road construction. 

  • Officially halting or suspending a formal criminal or juvenile justice proceeding and referral of the accused person to a treatment or care program. 

  • Removal of water via a canal. 

  • The rerouting of cargo or passengers to a new transshipment point or destination, or to a different mode of transportation before arrival at the ultimate destination. 

  • A tactic used to draw attention away from the real threat or action. 

How often have the words aberration and diversion occurred in a corpus of books? (source: Google Ngram Viewer )