hold tight vs nim

hold tight

verb
  • To remain patient, until a specified event occurs. 

  • To hold onto something securely or closely. 

nim

verb
  • To walk with short, quick strides; trip along. 

noun
  • A game in which players take turns removing objects from heaps. 

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