A History of Short Words

From the New York Times Crossword Puzzle

ARF

Tue, 29 Mar '22
Sound from a little dog
Tue, 1 Feb '22
Sheepdog's greeting
Wed, 20 Oct '21
Hound sound
Thu, 15 Jul '21
Kennel sound
Sun, 13 Jun '21
Pound sound
Tue, 4 May '21
Terrier's sound
Mon, 3 May '21
Little dog's bark
Thu, 25 Mar '21
Intruder warning, maybe
Tue, 12 Jan '21
Boxer's cry