A History of Short Words

From the New York Times Crossword Puzzle

YESIDO

Sat, 13 Jan '24
Emphatic agreement
Mon, 4 Jul '22
Adamant affirmation
Tue, 12 Apr '22
Affirmative reply to "Understand?"
Thu, 30 Sep '21
Response to a doubter
Sun, 7 Mar '21
Emphatic assent