Other forms: letterheads
A letterhead is the printed name and address at the top of official paper. Company letterhead, write on letterhead, headed paper.
It signals that a letter is official, which is exactly why forgers copy one. In Britain a company must show its registered number and office address on it by law, which is why the small print at the foot is there.
1nounletterheadThe printed name and address at the top of official paper.
“The letter was printed on the company's letterhead, with its logo at the top.”
letterhead is a printed heading.
Letter plus head, from the nineteenth-century printing trade.
From letter + head.
Etymology from Wiktionary, CC BY-SA