A History of Short Words

From the New York Times Crossword Puzzle

SUP

Fri, 10 May '24
"Heyo"
Tue, 5 Dec '23
"How's it goin'?"
Thu, 30 Nov '23
"Yo"
Fri, 16 Jun '23
"What's happening?"
Thu, 17 Mar '22
"How's it goin'?"
Sun, 28 Nov '21
Casual greeting
Tue, 13 Jul '21
"Yo, what's happening"