A plant bearing dark blue berries or flowers; an archaic or dialectal term for the blaeberry or related blue-fruited plants.
From Old Norse 'blār' (blue) + Old English 'wyrt' (plant/herb). The '-wort' suffix is an ancient botanical naming convention still seen in plant names like mugwort and liverwort.
The '-wort' suffix is one of the oldest botanical naming conventions in English—it shows up in over 400 plant names, making it a 1500+ year old filing system that botanists never abandoned!
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