Piacular
Making expiation or atonement for a sacrilege: piacular sacrifice. 2.
Requiring expiation; wicked or blameworthy.
ETYMOLOGY:
Latin piculris, from piculum, propitiatory sacrifice, from pire, to appease,
from pius, dutiful.

Interesting to me, dictionary gives as archaic meaning of "pious"
[Archaic] having or showing a sense of duty and loyalty to parents, family, friends, etc.