Parenthesis (rhetoric) explained

In rhetoric, a parenthesis (: parentheses; from the Ancient Greek word παρένθεσις parénthesis 'injection, insertion', literally '(a) putting in beside') or parenthetical phrase is an explanatory or qualifying word, phrase, clause, or sentence inserted into a passage. The parenthesis could be left out and still form grammatically correct text.[1] Parenthetical expressions are usually delimited by round brackets (also known as parentheses), square brackets, dashes, or commas. English-language style and usage guides originating in the news industry of the twentieth century, such as the AP Stylebook, recommend against the use of square brackets for parenthesis and other purposes, because "They cannot be transmitted over news wires."[2] Usage of parentheses goes back (at least) to the 15th century in English legal documents.[3]

Examples

Billy-bob, a great singer, was not a good dancer.:The phrase a great singer, set off by commas, is both an appositive and a parenthesis.
  • A dog (not a cat) is an animal that barks.:The phrase not a cat is a parenthesis.
  • My umbrella (which is somewhat broken) can still shield the two of us from the rain.:The phrase which is somewhat broken is a parenthesis.
  • Please, Gerald, come here!: Gerald is both a noun of direct address and a parenthesis.
  • People who eat broccoli are typically healthier—and happier—than people who don't.: The phrase and happier, set off by dashes, is a parenthesis.
  • Types

    The following are examples of types of parenthetical phrases:

    My father, a jaded and bitter man, ate the muffin.

    Within each example sentence, the parenthetical phrase is the portion that is displayed in an italic font. It is called a "parenthetical" phrase even when it is not delimited by any brackets (such as round -- [or square] -- brackets).

    Notes and References

    1. Book: John Walker . A Rhetorical Grammar: In which the Common Improprieties in Reading and Speaking are Detected ... . 1823 . T. Cadell . 978-1333239831 . 99.
    2. Encyclopedia: Christian. Darrell. openlibrary:authors/OL7512788A. Froke. Paula Marie. openlibrary:authors/OL8932325A. Jacobsen. Sally A.. Sally Jacobsen. Minthorn. David. openlibrary:authors/OL7512789A. AP Stylebook 2014. brackets []|version=Chapter "Punctuation Guide" |entry-url=https://archive.org/details/associatedpresss2014unse_l3a7/page/289/mode/1up|edition=49th|year=2014|publisher=Associated Press|location=New York|isbn=9780917360589|oclc=881182354|lccn=2002249088|page=289|title=Associated Press Stylebook 2014.
    3. Web site: Parenthesis | grammar | Britannica.
    4. Garner's Modern American Usage, (Oxford: 2003, p. 655)