A History of Short Words

From the New York Times Crossword Puzzle

INDIGO

Mon, 7 Mar '22
The "i" of Roy G. Biv
Sun, 13 Feb '22
Only trisyllabic rainbow color
Fri, 30 Jul '21
Part of Roy G. Biv
Sun, 27 Jun '21
"Mood ___" (Duke Ellington classic)
Sun, 30 May '21
Only color of the rainbow not seen on the L.G.B.T. pride flag
Wed, 30 Dec '20
Deep blue