- ad (n.)
[ad 词源字典]
- 1841, shortened form of advertisement. Long resisted by those in the trade, and according to Mencken (1945) denounced by William C. D'Arcy (president of Associated Advertising Clubs of the World) as "the language of bootblacks, ... beneath the dignity of men of the advertising profession."[ad etymology, ad origin, 英语词源]