> Although enormity has been used since the late 1700s to denote large size, this usage continues to be disparaged by various language commentators who argue th

> Although enormity has been used since the late 1700s to denote large size, this usage continues to be disparaged by various language commentators who argue that enormity should be reserved for senses related to "great wickedness." It is enormousness, they insist (a hefty and considerably less common word), that should be used in reference to great size, despite the fact that, like enormity, it too originally was used to denote wickedness or divergence from accepted moral standards. For better or worse, this proscription has been widely ignored by many English speakers, including professional writers. — https://www.merriam-webster.com/dictionary/enormity https://www.merriam-webster.com/dictionary/enormity It's not as clear as you're making it out to be.