Both Uses

perpetrator
in
The Scarlet Letter
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After her return to the prison, Hester Prynne was found to be in a state of nervous excitement, that demanded constant watchfulness, lest she should perpetrate violence on herself, or do some half-frenzied mischief to the poor babe.†
p. 66.1 *

perpetrate = to do something wrong or illegal
But for my aid his life would have burned away in torments within the first two years after the perpetration of his crime and thine.†
p. 158.2

perpetration = something done that was wrong or illegal

Definitions:

(1) (perpetrator)
someone who has does something wrong -- usually something illegal
(2) (meaning too rare to warrant focus)