liable vs subalternate

liable

adj
  • bound or obliged in law or equity; responsible; answerable. 

  • exposed to a certain contingency or causality, more or less probable. 

  • subject; susceptible. 

  • likely. 

subalternate

adj
  • Subaltern; inferior; subordinate. 

  • Succeeding by turns; successive. 

noun
  • A particular proposition, as opposed to a universal one. 

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