A History of Short Words

From the New York Times Crossword Puzzle

COS

Thu, 11 May '23
Trig fig.
Mon, 13 Mar '23
Fortune 500 listings: Abbr.
Wed, 16 Nov '22
Sin : y-axis :: ___ : x-axis
Sun, 22 Aug '21
sin/tan
Fri, 6 Aug '21
Trig function
Sun, 28 Feb '21
Sin's counterpart
Sat, 20 Feb '21
Trig function