Plural of codfishery; multiple places or operations where cod fish are caught commercially on a large scale.
From 'codfishery' (a place where cod are fished), adding the standard plural '-ies' ending. These operations became major industries in places like Newfoundland and Scandinavia.
The Grand Banks off Newfoundland had codfisheries so rich that explorers called it a place where 'cod fish were so thick you could walk on them'—it fed Europe for centuries!
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