A History of Short Words

From the New York Times Crossword Puzzle

ARMY

Mon, 19 Sep '22
Navy's football rival
Sun, 26 Jun '22
Name of BTS's fan base
Fri, 1 Apr '22
Drove
Mon, 7 Feb '22
Large group of ants
Sat, 5 Feb '22
Horde
Tue, 23 Mar '21
One side in a college football rivalry since 1890
Fri, 19 Feb '21
General assembly?