A History of Short Words

From the New York Times Crossword Puzzle

ILIAC

Mon, 9 Oct '23
Related to a pelvic bone
Tue, 8 Nov '22
___ crest (place for a backpacker's hip belt)
Wed, 26 May '21
___ crest (part of the pelvis)
Tue, 23 Mar '21
Hipbone-related