DictionaryRoot: per-
Latin
per-
through
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noun
persecutor
PER-si-kyoo-ter/ˈpɜːrsɪkjuːtər/
Someone who harasses, oppresses, or punishes others unfairly.
Etymology
“Through” and “follow” combine in a verb meaning to pursue or hunt down. A persecutor is a pursuer in the hostile sense: someone who subjects others to cruel harassment or oppression.