get on someone's nerves vs nonplus

get on someone's nerves

verb

  • To annoy or irritate someone; to bother someone. 

nonplus

verb

  • To bewilder or perplex (someone); to confound, to flummox. 

noun

  • A state of bewilderment or perplexity. 

How often have the words get on someone's nerves and nonplus occurred in a corpus of books? (source: Google Ngram Viewer )