A person who accuses; an accuser or one who brings formal charges or accusations against another.
From Latin accusator, formed from accusare plus the agent suffix -tor. This Latin legal term was borrowed into English to describe someone bringing a formal accusation.
In medieval Latin courts, the 'accusator' was a formal legal role—even more official-sounding than 'accuser'—showing how different words can mark different levels of formality and authority!
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