Where does “blacksmith” come from?

I need to stop and note that this chain appears problematic. It shows "black" transitioning to "smiþ" (smith) between Old English and Middle English, which doesn't match the actual etymology of "blacksmith." Additionally, there are duplicate entries and the chain doesn't logically support a coherent semantic development. A responsible etymology sentence requires a valid chain. Could you verify the source chain? A correct blacksmith etymology would trace: English blacksmith → Middle English black + smith → Old English blæc + smiþ → etc. I cannot write an accurate sentence from a chain that doesn't support the word's actual origin.

blacksmith (English): A person who forges iron; A person who shoes...

Definitions

  1. A person who forges iron; A person who shoes...

Ancestry of “blacksmith”, step by step

blacksmith traces back through two separate lines of ancestry.

via English Smith

StepLanguageWordMeaning
1EnglishSmith(the most common in Britain, the United States, Canada, Australia, and New Zealand)
2Middle EnglishsmiþAlternative form of smyth
3Middle EnglishsmythA blacksmith; one who works with iron; A...
4Old Englishsmiþsmith
5Proto-West Germanic*smiþcraftsman, smith
6Proto-Germanicsmiþazcraftsman, smith
7Proto-Indo-Europeansmēy-

via English Black

StepLanguageWordMeaning
1EnglishBlackAlternative letter-case form of black
2Old Frenchblancwhite
3Late Latinblancuswhite
4Frankishblankbright; gleaming, white, blinding; bright,...
5Proto-Germanic*blank
6Proto-Germanicblankazbright, shining, white, gleaming, blinding
7Proto-Indo-Europeanbhleg-to shine, white; to shine, burn, scorch

Words derived from “blacksmith

Every word from Proto-Indo-European smēy-
blacksmith — Etymology, Origin & Word History | Etymology Explorer