A History of Short Words

From the New York Times Crossword Puzzle

PITH

Tue, 24 Feb '26
Oft-discarded part of an orange
Thu, 10 Oct '24
Essence
Mon, 26 Dec '22
Bitter part of an orange
Sat, 26 Jun '21
Crux
Sat, 27 Mar '21
Crux of the matter