A History of Short Words

From the New York Times Crossword Puzzle

SPY

Sat, 13 Nov '21
Monitor of a tap
Sun, 31 Oct '21
Northern ___ (curiously named apple variety)
Sun, 24 Oct '21
One doing inside work
Fri, 14 May '21
Bug expert?
Sat, 27 Mar '21
One who's got the bug?
Thu, 25 Mar '21
One role for Harriet Tubman in the Civil War
Sun, 24 Jan '21
Only Stratego piece with a letter on it