A History of Short Words

From the New York Times Crossword Puzzle

YESM

Mon, 20 Feb '23
Courteous contraction
Wed, 14 Dec '22
Quaint response of agreement
Mon, 14 Nov '22
Polite affirmative, in the South
Sun, 17 Apr '22
Polite agreement
Tue, 20 Apr '21
Quaint affirmative