aid vs stricture

aid

verb
  • To climb with the use of aids such as pitons. 

  • To provide support to; to further the progress of; to help; to assist. 

noun
  • Help; assistance; succor, relief. 

  • An historical subsidy granted to the crown by Parliament for an extraordinary purpose, such as a war effort. 

  • A helper; an assistant. 

  • An exchequer loan. 

  • Something which helps; a material source of help. 

  • A pecuniary tribute paid by a vassal to his feudal lord on special occasions. 

  • The rider's use of hands, legs, voice, etc. to control the horse. 

stricture

noun
  • The degree of contact, in consonants. 

  • Abnormal narrowing of a canal or duct in the body. 

  • A general state of restrictiveness on behavior, action, or ideology. 

  • A rule restricting behaviour or action. 

  • A sternly critical remark or review. 

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