Affinity, in the proper sense of the word, is the connection which arises from cohabitation between each one of the two parties cohabiting, and the blood-relations of the other. It is regarded as an impediment to marriage in the Jewish, Roman, and canon law of the Church.
- Father James J McGovern. “affinity”. . CatholicSaints.Info. 15 January 2016. Web. 28 February 2017. <>