INCEST

An Illustrated Encyclopedic Medical Dictionary · 1893 · p. 19

n. I2n'se2st. Lat., incest us (from in neg., and castns, chaste). Fr., incests. Ger., Blutschande. It., Sp., incesto. Cohabitation between persons so related as to make their marriage illegal. [L, 56.] [s. 443]