Apparently around since the late ’90s: flexitarian. New one on me. http://usat.ly/RSJ9ws
But here are a couple much older than I would have guessed:
aha moment n (1939): a moment of sudden realization, inspiration, insight, recognition, or comprehension
earworm n (1802) 1: CORN EARWORM 2: a song or melody that keeps repeating in one’s mind
So the second definition dates to 1802? Also a new one on me, but I never imagined a Beethoven ditty ensconced in the cochlea. Who does he think he is, Tony Orlando? (OK, Maroon 5’s “moves like Jagger” is probably more pop appropriate.)
And Webster’s? It’s my official if-it’s-in Webster’s-it’s-a-word source. Or maybe it’s everyone’s official if-it’s-in Webster’s-it’s-a-word source. When a word becomes, well, Websterable, it’s a big deal for me.
Damn. All I can hear now is “knock three times.”