subalternate vs suppletory

subalternate

adj
  • Subaltern; inferior; subordinate. 

  • Succeeding by turns; successive. 

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

suppletory

adj
  • Making up for deficiencies; supplementary. 

noun
  • A supplement. 

  • A source of supply. 

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