Reading Bleak House by Charles Dickens, published in 1866, and ran across the sentence “What a load off my mind!” Used in the sense of “That’s a relief!”
I wold have thought that “a load off my mind” had its origin much more recently than that–maybe as late as the 1950s or 1960s, but certainly by the 1920s. It just SOUNDS like it. Maybe that’s just me, but my wife had the same reaction… Anyway, evidently, I was wrong. I don’t suppose Dickens invented the phrase, so I wonder just how far back it actually goes.
The book also has a character named Richard who is sometimes referred to as Rick; I would have thought that Rick was likewise a much more recently-developed nickname for Richard than 1866. But again, what do I know?
What similar older-than-you-think expressions have you encountered?