A History of Short Words

From the New York Times Crossword Puzzle

BERT

Sat, 8 Jun '24
Curmudgeon of children's TV
Wed, 8 Feb '23
Muppet that sings "Doin' the Pigeon"
Thu, 11 Aug '22
"Doin' the Pigeon" dancer on "Sesame Street"
Sun, 20 Feb '22
Taller roommate of 15-Down
Wed, 11 Aug '21
Muppet with a unibrow
Wed, 16 Jun '21
Muppet with a big orange nose
Tue, 4 May '21
Ernie's partner on TV
Wed, 21 Apr '21
Muppet with a unibrow