dickey

Dickey is a surname of English and Scottish origin. It is a patronymic or diminutive form derived from the given name Dick, itself a short form of Richard. The spelling Dickey, Dickie, and related variants are common in the English-speaking world and have spread with migration and genealogical record-keeping.

As a given name or nickname, Dickey has been used for people named Richard. The spelling Dickey is widely seen in American and British usage, sometimes as an informal form of Richard in social or professional contexts.

Notable people with the surname include James Dickey (1923–1997), an American poet and novelist known for Deliverance. The name appears among various figures in literature, politics, and academia, reflecting its long-standing presence in English-speaking cultures.

Other uses: a dickey (also spelled dickie) is a detachable shirt front worn under a shirt to imitate a full dress shirt, historically common in formal wear; modern versions are sold as fashion or convenience accessories.

In statistics, the Dickey-Fuller test, named after David Dickey and Wayne Fuller, is used to test for a unit root in time series data. The augmented version of this test is known as the Augmented Dickey-Fuller (ADF) test and is widely employed in econometrics and signal analysis.