au pair
noun
[ əʊ ˈpɛː ]
• a young foreign person, typically a woman, who helps with housework or childcare in exchange for food, a room, and some pocket money.
• "an au pair agency"
Origin:
late 19th century: from French, literally ‘on equal terms’. The phrase was originally adjectival, describing an arrangement between two parties paid for by the exchange of mutual services; the noun usage dates from the 1960s.
