An archaic or dialectal form of 'blacken'; to make black or dark in color.
From Old English 'bæcnan' or related to 'bake' and 'black.' This is an extremely archaic or dialectal word, possibly related to 'blacken' with a variant pronunciation or spelling from Middle English.
This word is so archaic it barely survives in English except in dialect dictionaries and old texts—it represents how words change over centuries, sometimes becoming unrecognizable.
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