complemental vs subalternate

complemental

adj
  • Complementary. 

  • Of the nature of a complement; completing. 

subalternate

adj
  • Subaltern; inferior; subordinate. 

  • Succeeding by turns; successive. 

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

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