A History of Short Words

From the New York Times Crossword Puzzle

CALC

Fri, 4 Jul '25
Course in which integration is taught, for short
Wed, 18 Jun '25
Course that may follow trig
Wed, 4 Sep '24
H.S. course in which one might be graded on a curve?
Sun, 30 Oct '22
Class for which trig is a prereq
Wed, 2 Feb '22
Class with integrals, for short