A History of Short Words

From the New York Times Crossword Puzzle

MOLE

Sat, 13 Nov '21
Savory sauce made with chocolate
Mon, 11 Oct '21
Small mammal that lives mostly underground
Wed, 6 Oct '21
Animal that's also a plant?
Fri, 2 Apr '21
Mexican sauce made from chili peppers and chocolate
Mon, 1 Mar '21
Undercover operative