aberrant vs quicksilver

aberrant

adj
  • Deviating from the ordinary or natural type; exceptional; abnormal. 

  • Differing from the norm. 

  • Straying from the right way; deviating from morality or truth. 

noun
  • A group, individual, or structure that deviates from the usual or natural type, especially with an atypical chromosome number. 

  • A person or object that deviates from the rest of a group. 

quicksilver

adj
  • Unpredictable, erratic or fickle; mercurial. 

noun
  • The metal mercury. 

  • An amalgam of mercury and tin applied to the backs of mirrors, quicksilvering. 

verb
  • To overlay with quicksilver. 

  • To treat with quicksilver. 

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