The word "reciprocity" is a noun that refers to a relation of mutual exchange. The origin of the word comes from the Latin word, "reciprocus."
The word "reciprocity" as an adjective is "reciprocal." To understand the meaning of the word, consider an example in which a baker trades fresh bread to a fisherman for fresh fish every day. Both parties mutually benefit from the exchange, making this an example of reciprocity. The word "reciprocity" is used in a sentence as follows: "The two presidents decided to do away with the trade restrictions of their respective countries, agreeing that mutual reciprocity was more beneficial than mutual hostility."