Where does “blackchin” come from?

blackchin (English) comes from English Black, from Old French blanc, from Late Latin blancus, from Frankish blank, from Proto-Germanic *blank, from Proto-Germanic blankaz, from Proto-Indo-European bhleg- — to shine, white; to shine, burn, scorch.

blackchin (English): Any of several species of fish with a black jaw,...

Definitions

  1. Any of several species of fish with a black jaw,...

Ancestry of “blackchin”, step by step

blackchin traces back through two separate lines of ancestry.

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

via English chin

StepLanguageWordMeaning
1EnglishchinThe bottom of a face, the typically jutting...
2Middle EnglishchynThe chin or jawline; The bone composing the chin;...
3Old Englishċinnchin
4Proto-West Germanickinnuchin, jaw
5Proto-Germanickinnuzcheek; chin, jaw
6Proto-Indo-Europeanǵénu-jaw, cheek, chin; cheek
Every word from Proto-Indo-European bhleg-Every word from Proto-Germanic blankazEvery word from Proto-Germanic *blank
blackchin — Etymology, Origin & Word History | Etymology Explorer