adhere vs squad

adhere

verb
  • To be attached or devoted by personal union, in belief, on principle, etc. 

  • To affirm a judgment. 

  • To be consistent or coherent; to be in accordance; to agree. 

  • To stick fast or cleave, as a glutinous substance does; to become joined or united. 

squad

verb
  • To act as part of, or on behalf of, a squad. 

noun
  • Sloppy mud. 

  • One's friend group, taken collectively; one's peeps. 

  • A unit of tactical military personnel, or of police officers, usually of about ten members. 

  • A group of potential players from whom a starting team and substitutes are chosen. 

  • A collective noun for a group of squid. 

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