enormity vs order of magnitude

enormity

noun
  • Great size; enormousness, hugeness, immenseness. 

  • Deviation from moral normality; extreme wickedness, nefariousness, or cruelty. 

  • A breach of law or morality; a transgression, an act of evil or wickedness. 

order of magnitude

noun
  • The class of scale or magnitude of any amount, where each class contains values of a fixed ratio (most often 10) to the class preceding it. For example, something that is 2 orders of magnitude larger is 100 times larger, something that is 3 orders of magnitude larger is 1000 times larger, and something that is 6 orders of magnitude larger is a million times larger, because 10² = 100, 10³ = 1000, and 10⁶ = a million. 

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