A History of Short Words

From the New York Times Crossword Puzzle

RAT

Sun, 7 Nov '21
Bad person to confess bad things to
Thu, 2 Sep '21
Snitch
Mon, 9 Aug '21
Pig follower in the Chinese zodiac
Thu, 22 Jul '21
Bad singer?
Wed, 14 Jul '21
Narc (on)
Sun, 20 Jun '21
Chinese zodiac animal
Sun, 9 May '21
Mobster's undoing
Fri, 23 Apr '21
Singer in the family?
Wed, 17 Feb '21
Squeaker or squealer