celebrate vs disallow

celebrate

verb
  • To honour by rites, by ceremonies of joy and respect, or by refraining from ordinary business; to observe duly. 

  • To perform or participate in, as a sacrament or solemn rite; to perform with appropriate rites. 

  • To extol or honour in a solemn manner. 

  • To engage in joyful activity in appreciation of an event. 

disallow

verb
  • To reject as invalid, untrue, or improper 

  • to overrule a colonial legislation by the sovereign-in-privy council 

  • To refuse to allow 

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