Present participle of anabaptize; the act of baptizing someone again, or performing rebaptism.
From 'anabaptize' + '-ing' (present participle suffix). This gerund form allows the action itself to be discussed as a noun—'the anabaptizing of converts'—or as an ongoing activity.
In 16th-century Europe, 'anabaptizing' was literally illegal and carried death penalties in most regions, making it one of the few words whose simple verb form could get you executed for merely performing the action it describes.
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