Ah, but which English? I rather suspect it was the American variety that did the most of that. Because, you know, American tradition of rendering unconscious and emptying pockets, and all. It's a thing, here.
On the topic of "words" "found in" pockets, they didn't harvest every single password I'd created for a handful of years because they didn't care about the USB drive-- just the bit of cash. I also had someone's CC# on a sticky note in my wallet, and they left it all on the ground. Amateurs.
"The problem with defending the purity of the English language is that English is about as pure as a cribhouse whore. We don’t just borrow words; on occasion, English has pursued other languages down alleyways to beat them unconscious and rifle their pockets for new vocabulary." --James D. Nicoll