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 (García) and Portuguese: from a medieval personal name of uncertain origin. It is normally found in medieval records in the Latin form Garsea, and may well be of pre-Roman origin, perhaps akin to Basque (h)artz ‘bear’.