gird vs undertake

gird

verb
  • To prepare (oneself) for an action. 

  • To jeer at. 

  • To bind with a flexible rope or cord. 

  • To encircle with, or as if with a belt. 

  • To jeer. 

noun
  • A sarcastic remark. 

  • A stroke with a rod or switch. 

  • A severe spasm; a twinge; a pang. 

undertake

verb
  • To take upon oneself; to start, to embark on (a specific task etc.). 

  • To commit oneself (to an obligation, activity etc.). 

  • To pass a slower moving vehicle on the curbside rather than on the side closest to oncoming traffic. 

noun
  • The passing of slower traffic on the curbside rather than on the side closest to oncoming traffic. 

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