This quote is Ward, from "The Paper Route." He was reading Old Man Merkel the riot act. I had to look this word up, even to spell it.

Just out of curiosity, does anyone know the word "perspicacity" and what it means (I didn't)? Is it a word that's even used anymore?

noun
1.
keenness of mental perception and understanding; discernment; penetration.
2.
Archaic. keen vision.

Here's where I learned that word, many years ago:

https://www.youtube.com/watch?v=ZJM6DDvzm84

Great word and old man Merkel thought Ward was trying to insult him and he was. Ward was about to “skin him alive.”