A History of Short Words

From the New York Times Crossword Puzzle

DENS

Sun, 18 Jul '21
Hangout rooms
Wed, 23 Jun '21
Lairs
Mon, 21 Jun '21
Where bears hibernate
Fri, 14 May '21
Studies
Sun, 2 May '21
Retreats
Sun, 4 Apr '21
Places to play cards, often
Wed, 13 Jan '21
Hibernation stations