Where does “blackleg” come from?

blackleg (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.

blackleg (English): A person who takes the place of striking workers;...

Definitions

  1. A person who takes the place of striking workers;...

Ancestry of “blackleg”, step by step

blackleg 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 leg

StepLanguageWordMeaning
1EnglishlegA limb or appendage that an animal uses for...
2Middle Englishlegleg, limb; shank, shin; leg
3Old Norseleggrleg, stem
4Proto-Germaniclagjazleg, thigh
5Proto-Indo-European(ǝ)lak-

Words derived from “blackleg

Every word from Proto-Indo-European bhleg-Every word from Proto-Germanic blankazEvery word from Proto-Germanic *blank