It took me until graduate school to learn that "mortified" is not another word for "scared"/"fearful"
It still looks that way to me what with mort in there!
It also took me a long time to realize that the word "awry", which I read often in books and inferred its meaning, and "ah-rai" were the same thing. I thought awry was pronounced "aw-ree" and it was just a synonym for "ah-rai".