Dederick

Older form of DEREK.

DEREK   male   English
From the older English name Dederick, which was in origin a Low German form of THEODORIC. It was imported to England from the Low Countries in the 15th century.
THEODORIC   male   History
From a Germanic name meaning "ruler of the people", derived from the elements theud "people" and ric "power, ruler". It was notably borne by Theodoric the Great, a 6th-century king of the Ostrogoths who eventually became the ruler of Italy. By Theodoric's time the Ostrogoths were partially Romanized and his name was regularly recorded as Theodoricus. The Gothic original may have been Þiudreiks.
EQUIVALENTS
ANCIENT CELTIC: Teutorigos
ANCIENT GERMANIC: Theoderich, Theodoricus, Theudoricus, Theutrich, Þiudreiks
DUTCH: Diederick, Diederik, Tijmen
ENGLISH: Derek, Derick, Derrick, Deryck
FRENCH: Thierry
GERMAN: Diederich, Dietrich
HISTORY: Theodoric
WELSH: Tudor, Tudur
DIMINUTIVES AND SHORT FORMS
DUTCH: Dick, Diede, Dirk, Tiede, Ties
ENGLISH: Dirk
FRISIAN: Tiede
GERMAN: Dierk, Dirk, Thilo, Till, Tillo, Tilo
MEDIEVAL GERMAN: Tielo
VARIOUS: Thelonius
OTHER FORMS
AFRICAN AMERICAN: Dedrick
ENGLISH (BRITISH): Tel
ENGLISH: Teri, Terri, Terrie, Terry