A History of Short Words

From the New York Times Crossword Puzzle

NOT

Mon, 8 Nov '21
"Just kidding!"
Sat, 7 Aug '21
With 7-Down, disliking ... or at least feeling indifferent about
Sun, 1 Aug '21
Often-contracted word
Fri, 7 May '21
Sarcastic punch line to an insincere remark