I met a person recently who challenged my use of the word 'pious' for I thought it meant a devout and 'as unpretending as’ humanly possible toward religion, yet the other person thought I was speaking of a 'pious' person who was a charlatan or a lazily devout person.
I read Merriam Webster, thinking if both definitions have popularity, there will be evidence we are both correct, of course my choice would win, being the first ranked. Yes and no. Mine is first; it's 1a, and hers is second labeled 1b!
What?
Have I found a word that is an antonym of itself? How often does that happen? How does that happen? And what does it all mean?