A History of Short Words

From the New York Times Crossword Puzzle

ROOT

Thu, 25 Aug '22
Turnip or beet
Fri, 20 May '22
Source
Wed, 15 Dec '21
Edible part of a taro plant
Sun, 7 Nov '21
The C of C major, e.g.
Tue, 6 Jul '21
Plant part that most herbicides attack
Fri, 23 Apr '21
Original cause
Sun, 7 Mar '21
Two, for four