A History of Short Words

From the New York Times Crossword Puzzle

WHO

Sun, 11 Feb '24
"___ knows?"
Sun, 23 Jul '23
Nocturnal bird known for its distinct calls, informally
Wed, 8 Feb '23
"Doctor ___"
Tue, 13 Dec '22
A question of identity
Mon, 28 Nov '22
Owl's question?
Sat, 1 Jan '22
Start of many a Google search
Tue, 21 Dec '21
Question of identity
Wed, 14 Jul '21
"___ goes there?"
Sat, 8 May '21
It becomes another question when its first letter is moved to the end
Thu, 14 Jan '21
"Have I met her?"