Where does “blacketh” come from?

blacketh (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.

blacketh (English): third-person singular simple present indicative...

Definitions

  1. third-person singular simple present indicative...

Ancestry of “blacketh”, step by step

blacketh 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 eth

StepLanguageWordMeaning
1EnglishethA letter introduced into Old English to...
Every word from Proto-Indo-European bhleg-Every word from Proto-Germanic blankazEvery word from Proto-Germanic *blank