A History of Short Words

From the New York Times Crossword Puzzle

DELTA

Sun, 9 Apr '23
SkyMiles offerer
Mon, 27 Mar '23
Airline once said to be "ready when you are"
Tue, 14 Mar '23
Greek letter used for a 2021 Covid variant
Fri, 29 Jul '22
Area around the mouth
Mon, 18 Apr '22
Airline with its main hub in Atlanta
Wed, 6 Apr '22
Difference symbol, in math
Tue, 15 Jun '21
Airline whose name is a Greek letter
Tue, 19 Jan '21
Buildup at the mouth of a river