Bible Dictionaries
Incest

1910 New Catholic Dictionary

Carnal intercourse with relatives, of blood or affinity, whom the Church forbids one to marry. The circumstance of relationship adds a special malice to the sin of impurity because, by committing this sin with a relative, one sins also against the virtue of piety which prescribes due reverence towards those who are closely related.

Bibliography Information
Entry for 'Incest'. 1910 New Catholic Dictionary. https://www.studylight.org/​dictionaries/​eng/​ncd/​i/incest.html. 1910.