Relating to a coroner or the office of coroner; concerning the investigation of deaths or official legal inquiries into cause of death.
From coroner (from Latin corona, because historically the coroner represented the crown's interests) + -orial (relating to). The coroner was a crown official.
Coroners have been investigating mysterious deaths since medieval times—originally, they protected the crown's property when someone died, not for justice, but because dead people's belongings went to the king!
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