A person or animal that eats fish as part of their diet.
Compound of 'fish' (Old English 'fisc') and 'eater' (Old English 'etan', meaning to consume). Simple descriptive term that has been used in English for centuries.
Many cultures developed the term 'fisheater' as an identity marker — medieval Christians called themselves this during Lent as proof of their piety, while some societies used it to distinguish coastal people from inland populations.
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