daze vs unnerve

daze

verb
  • To stun or stupefy, for example with bright light, with a blow, with cold, or with fear 

noun
  • A glittering stone. 

  • The state of being dazed 

unnerve

verb
  • To make somebody nervous, upset, alarm, shake the resolve of. 

  • To deprive of nerve, force, or strength; to weaken; to enfeeble. 

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