curse vs oath

curse

noun
  • A vulgar epithet. 

  • A prayer or imprecation that harm may befall someone. 

  • The cause of great harm, evil, or misfortune; that which brings evil or severe affliction; torment. 

  • A supernatural detriment or hindrance; a bane. 

verb
  • To place a curse upon (a person or object). 

  • To bring great evil upon; to be the cause of serious harm or unhappiness to; to furnish with that which will be a cause of deep trouble; to afflict or injure grievously; to harass or torment. 

  • To use offensive or morally inappropriate language. 

  • To speak or shout a vulgar curse or epithet. 

  • To call upon divine or supernatural power to send injury upon; to imprecate evil upon; to execrate. 

oath

noun
  • A curse, a curse word. 

  • A light, irreverent or insulting appeal to a deity or other entity. 

  • A solemn pledge or promise that invokes a deity, a ruler, or another entity (not necessarily present) to attest the truth of a statement or sincerity of one's desire to fulfill a contract or promise. 

  • A statement or promise which is strengthened (affirmed) by such a pledge. 

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