admit vs betray

admit

verb
  • To concede as true; to acknowledge or assent to, as an allegation which it is impossible to deny (+ to). 

  • To allow to enter; to grant entrance (to), whether into a place, into the mind, or into consideration 

  • To give warrant or allowance, to grant opportunity or permission (+ of). 

  • To allow (someone) to enter a profession or to enjoy a privilege; to recognize as qualified for a franchise. 

  • To allow to enter a hospital or similar facility for treatment. 

  • To be capable of; to permit. In this sense, "of" may be used after the verb, or may be omitted. 

betray

verb
  • To prove faithless or treacherous to, as to a trust or one who trusts; to be false to; to deceive. 

  • To violate the confidence of, by disclosing a secret, or that which one is bound in honor not to make known. 

  • To deliver into the hands of an enemy by treachery or fraud, in violation of trust; to give up treacherously or faithlessly. 

  • To disclose or indicate, for example something which prudence would conceal; to reveal unintentionally. 

  • To mislead; to expose to inconvenience not foreseen; to lead into error or sin. 

  • To lead astray; to seduce (as under promise of marriage) and then abandon. 

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