A History of Short Words

From the New York Times Crossword Puzzle

BCCS

Mon, 15 Nov '21
Privately includes on an email
Fri, 1 Oct '21
Keeps informed, in a way
Sat, 14 Aug '21
Hidden inclusions, for short
Wed, 16 Jun '21
Secretly loops in, in a way
Thu, 8 Apr '21
Hidden addresses, for short
Wed, 3 Feb '21
Secretly includes on an email