As a boy's name this is a pet form of Jeremy or Gerald, or occasionally of Gerard and Jerome. As a girl's name it is a variant spelling of Gerry, and is sometimes bestowed as an independent given name, as in the case of the American model and actress Jerry Hall (b. 1956).
German: metonymic occupational name for an importer or seller of bitter (Seville) oranges, Middle High German pomeranz (medieval Latin pomarancia, composed of the elements arancia, the name imported with the fruit. Compare Naranjo, with the explanatory Latin word pomum ‘apple’, ‘fruit’).