A person who jointly appraises or values something together with another person.
From co- (together) + appriser (one who appraises), derived from Old French appriser meaning to set a price. The prefix co- was added to indicate shared responsibility in evaluation.
This word reveals how medieval legal systems needed specific terms for shared decision-making—when two experts had to agree on land value or inheritance worth, language had to catch up and create words for collaboration.
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