aid vs balk

aid

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

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

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. 

balk

verb
  • To engage in contradiction; to be in opposition. 

  • To refuse suddenly. 

  • To stop short and refuse to go on. 

  • To leave heaped up; to heap up in piles. 

  • To omit, miss, or overlook by chance. 

  • To leave or make balks in. 

  • To make a deceptive motion to deceive another player. 

  • To stop, check, block. 

  • To indicate to fishermen, by shouts or signals from shore, the direction taken by the shoals of herring. 

  • To disappoint; to frustrate. 

noun
  • Beam, crossbeam; squared timber; a tie beam of a house, stretching from wall to wall, especially when laid so as to form a loft, "the balks". 

  • The wall of earth at the edge of an excavation. 

  • The area of the table lying behind the baulk line. 

  • A sudden and obstinate stop. 

  • A hindrance or disappointment; a check. 

  • The rope by which fishing nets are fastened together. 

  • The area of the table lying behind the line from which the cue ball is initially shot, and from which a ball in hand must be played. 

  • An illegal motion by the pitcher, intended to deceive a runner. 

  • A motion used to deceive the opponent during a serve. 

  • An uncultivated ridge formed in the open field system, caused by the action of ploughing. 

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