Huh. Learn something new every day ... I just found out that the word "chortle" is of much more recent origin than I'd imagined. According to a web page about the evolution of English, "chortle" was coined by Lewis Carrol as a combination of "chuckle" and "snort". And here I'd thought it was one of those "been around [effectively] forever" words. (Okay, it would obviously have to be Middle English or Modern English, so I knew it was less than a thousand years old, but still, I was waaaaay off.)
chortle
Re: chortle
He used to write the Mathematical Puzzles and Diversions column for Scientific American. I don't know if he is still alive -- I was reading his columns collected in books back in 1965.
Hexaflexagons! Polyominoes! Moebius strips!
Re: chortle
As for Martin Gardner, I used to enjoy his column in Scientific American in the 1970s and 1980s; I only stumbled across one slim volume of his work in book form. It was his review of Douglas Hofstader's (oh, I've probably misspelled that) Godel, Escher, Bach that turned me on to that book (not too long before Hofstader's column replaced Gardner's in SciAm, IIRC).