Use of
sic greatly increased in the mid-20th century. For example, in
United States state-court opinions before 1944,
sic appeared 1,239 times in the
Westlaw database; in those from 1945 to 1990, it appeared 69,168 times, over 55 times as many. Its use as a form of ridicule has been cited as a major factor in this increase.
Conventional use The bracketed form [
sic] is most often inserted into quoted or reprinted material to indicate meticulous accuracy in reproducing the preceding text, despite appearances to the reader of an incorrect or unusual
orthography (spelling,
punctuation, etc.), grammar, syntax, fact, or logic. Several usage guides recommend that a bracketed
sic be used primarily as an aid to the reader, not as an indicator of disagreement with the source.
Use to denote archaisms and dialect Sic may show that an uncommon or
archaic expression is reported faithfully, such as when quoting the
U.S. Constitution: "The House of Representatives shall their Speaker ..." However, several writing guidebooks discourage its use with regard to dialect, such as in cases of
American and British English spelling differences. The appearance of a bracketed
sic after the word
analyse in a book review led
Bryan A. Garner to comment, "all the quoter (or overzealous editor) demonstrated was ignorance of British usage".
Bryan A. Garner dubbed this use of
sic "ironic", providing the following example from
Fred Rodell 1955 book
Nine Men: This is a reference to the similar-sounding word
persecution. ==Formatting==