Where does “blank” come from?

blank (Old Dutch) comes from Proto-Germanic blankaz, from Proto-Indo-European bhleg- — to shine, white; to shine, burn, scorch.

Ancestry of “blank”, step by step

StepLanguageWordMeaning
1Proto-Germanicblankazbright, shining, white, gleaming, blinding
2Proto-Indo-Europeanbhleg-to shine, white; to shine, burn, scorch

Words derived from “blank

Every word from Proto-Indo-European bhleg-Every word from Proto-Germanic blankaz