Girl name origins & meanings French : Dark; dark-hairedIrish : Bitter Girl name variations Maureen May Maura Mora Moira Moreen Moria Moriah Maurin Maurine Maurizia Mo Family name origins & meanings Spanish : shortened form of De la Morena, which either refers to the Sierra Morena, or is a matronymic from a feminine form of a nickname from moreno ‘brown’. Compare Moreno.Southern Italian : from a feminine form of Moreno.