Dereck

Dereck is an English given name and an uncommon spelling variant of Derek, which derives from the Old German name Theodoric, composed of the elements theud, meaning people or folk, and ric, meaning power or ruler. The name was brought to England by Flemish settlers during the medieval period and gradually became established in English-speaking countries. Related forms include Derek, Derick, Derrick, and the older Continental variants Dirk and Theodoric.