cretin vs deficient

cretin

noun

  • A person who fails to develop mentally and physically due to a congenital hypothyroidism. 

  • An idiot. 

deficient

noun

  • A person who is deficient. 

adj

  • Insufficient or inadequate in amount. 

  • Lacking something essential; often construed with in. 

  • Of a number n, Having the sum of divisors σ(n)<2n, or, equivalently, the sum of proper divisors (or aliquot sum) s(n). 

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