aid vs pain

aid

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. 

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

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

pain

noun
  • Labour; effort; great care or trouble taken in doing something. 

  • An ache or bodily suffering, or an instance of this; an unpleasant sensation, resulting from a derangement of functions, disease, or injury by violence; hurt. 

  • The condition or fact of suffering or anguish especially mental, as opposed to pleasure; torment; distress 

  • An annoying person or thing. 

verb
  • To feel pain; to hurt. 

  • To hurt; to put to bodily uneasiness or anguish; to afflict with uneasy sensations of any degree of intensity; to torment; to torture. 

  • To render uneasy in mind; to disquiet; to distress; to grieve. 

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