archsin

noun

archsin

noun

Etymology From arch- + sin.

1

A chief or primary sin.

Illicit sex, on the other hand, is the archsin, the gravest crime, a transgression which carries in itself its horrible punishment.1959, Raphael Patai, Sex and Family in the Bible and the Middle East, page 159:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.