A person who takes an oath together with another person, or a fellow juror serving on the same jury panel.
From 'co-' (together) + 'juror,' from Old French 'jurer' (to swear), Latin 'jurare.' Medieval legal terminology for those who swore oaths jointly.
In medieval England, if you committed a crime, your victim could ask cojurors—people who swore alongside them—to testify about your reputation. It's an ancient system where character witnesses were literally oath-swearers standing together.
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