A History of Short Words

From the New York Times Crossword Puzzle

REPS

Mon, 13 Jan '25
Visibly supports, as a university or sports team
Wed, 11 Sep '24
Counts at the gym
Tue, 27 Aug '24
Workout units
Tue, 13 Jun '23
Bodybuilder's count
Fri, 2 Jun '23
Promotes, informally
Sun, 28 May '23
CrossFit bits
Mon, 30 May '22
Parts of a gym set