brownie
noun
[ ˈbraʊni ]
• a small square of rich chocolate cake, typically containing nuts.
• a member of the junior branch of the Guide Association, for girls aged between about 7 and 10, wearing a brown uniform.
• "for my birthday I want to join the Brownies"
• a benevolent elf that supposedly haunts houses and does housework secretly.
Origin:
early 16th century (in brownie (sense 3)): diminutive of brown (a ‘wee brown man’ often appears in Scottish ballads and fairy tales).
