A History of Short Words

From the New York Times Crossword Puzzle

AMPM

Sun, 27 Jul '25
Clock toggle
Thu, 5 Jun '25
Toggle on a digital clock
Fri, 20 Oct '23
Distinction not used in the military
Thu, 12 Jan '23
All-day, in a way
Wed, 8 Jun '22
Day and night?
Wed, 1 Jun '22
Digital clock toggle
Wed, 10 Feb '21
Toggle on a clock