antecedent vs origin

antecedent

noun
  • An ancestor. 

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

  • Previous principles, conduct, history, etc. 

  • Any thing that precedes another thing, especially the cause of the second thing. 

  • A word, phrase or clause referred to by a pronoun. 

  • The first of two subsets of a sequent, consisting of all the sequent's formulae which are valuated as true. 

  • The conditional part of a hypothetical proposition, i.e. p→q, where p is the antecedent, and q is the consequent. 

adj
  • Earlier, either in time or in order. 

  • Presumptive. 

origin

noun
  • Ancestry. 

  • The proximal end of attachment of a muscle to a bone that will not be moved by the action of that muscle. 

  • An arbitrary point on Earth's surface, chosen as the zero for a system of coordinates. 

  • The source of a river, information, goods, etc. 

  • The beginning of something. 

  • The point at which the axes of a coordinate system intersect. 

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