consequent vs contingent

consequent

noun
  • An event which follows another. 

  • The second term of a ratio, i.e. the term b in the ratio a:b, the other being the antecedent. 

  • A consequent stream. 

  • The second half of a hypothetical proposition; Q, if the form of the proposition is "If P, then Q." 

adj
  • Following as a result, inference, or natural effect. 

  • Of or pertaining to consequences. 

  • Of a stream, having a course determined by the slope it formed on. 

contingent

noun
  • An event which may or may not happen; that which is unforeseen, undetermined, or dependent on something future. 

  • That which falls to one in a division or apportionment among a number; a suitable share. 

  • A quota of troops. 

adj
  • Possible or liable, but not certain to occur. 

  • Dependent on something that is undetermined or unknown, that may or may not occur. 

  • Not logically necessarily true or false. 

  • Temporary. 

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