/ˌresəˈpräsədē/
noun
noun: reciprocity
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the practice of exchanging things with others for mutual benefit, especially privileges granted by one country or organization to another.
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“the Community intends to start discussions on reciprocity with third countries”
Origin
mid 18th century: from French réciprocité, from réciproque, from Latin reciprocus‘moving backwards and forwards’ (see reciprocate).