A berry that grows in fens or marshy areas; possibly another name for the bog whortleberry or similar wetland fruit.
Compound of 'fen' (marshy ground) and 'berry.' A regional or dialect term whose exact botanical reference may vary by location, reflecting folk taxonomy of wetland plants.
Many traditional berry names tell stories about where plants grow—fenberry would indicate a berry you'd find in marshes, though like many regional plant names, different areas might use this word for different berries.
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