From the Greek word melissa ‘honey bee’. It is the name of the good witch who releases Rogero from the power of the bad witch Alcina in Ariosto's narrative poem Orlando Furioso (1532). The name was fairly popular in the 1990s, along with other girls’ names sharing the same first syllable.
Spanish: nickname from the past participle of hurtar ‘to rob or conceal’ (Late Latin furtare, from furtum ‘theft’, fur ‘thief’). The reference was probably to an illegitimate child, whose existence was concealed, or to a kidnapped child.