A History of Short Words

From the New York Times Crossword Puzzle

IFS

Mon, 1 Aug '22
Hypotheticals
Sat, 30 Jul '22
They're to be determined
Sun, 24 Jul '22
Some coding statements
Sun, 1 May '22
Some coding statements
Wed, 26 Jan '22
Hypotheticals
Thu, 18 Mar '21
Suppositions
Fri, 1 Jan '21
Cases to consider