Where does “bla” come from?

bla (Middle English) comes from Old Norse blár, from Old Norse bý, from Proto-Germanic biją, from Proto-Germanic bijǭ, from Proto-Indo-European bʰey- — bee.

Ancestry of “bla”, step by step

StepLanguageWordMeaning
1Old Norseblárblue, often denoting a dark colour, blue-black,...
2Old Norsebýbee
3Proto-Germanicbiją—
4Proto-Germanicbijǭbee
5Proto-Indo-Europeanbʰey-bee

Words derived from “bla”

Every word from Proto-Indo-European bʰey- →Every word from Proto-Germanic bijǭ →Every word from Proto-Germanic biją →