centripetal vs nervous

centripetal

adj
  • Directed towards the central nervous system; afferent. 

  • Directed or moving towards a centre. 

  • Of, relating to, or operated by centripetal force. 

nervous

adj
  • Affecting the nerves or nervous system. 

  • Easily agitated or alarmed; edgy, on edge. 

  • Apprehensive, anxious, hesitant, worried. 

  • Supplied with nerves; innervated. 

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