Where does “knallblå” come from?

knallblå (Norwegian Bokmål) comes from Norwegian Bokmål blå, from Old Norse blár, from Old Norse bý, from Proto-Germanic biją, from Proto-Germanic bijǭ, from Proto-Indo-European bʰey- — bee.

knallblå (Norwegian Bokmål): bright blue, azure blue

Definitions

  1. bright blue, azure blue

Ancestry of “knallblå”, step by step

knallblå traces back through two separate lines of ancestry.

via Norwegian Bokmål blå

StepLanguageWordMeaning
1Norwegian Bokmålblåblue
2Old Norseblárblue, often denoting a dark colour, blue-black,...
3Old Norsebýbee
4Proto-Germanicbiją—
5Proto-Germanicbijǭbee
6Proto-Indo-Europeanbʰey-bee

via Norwegian Bokmål knall

StepLanguageWordMeaning
1Norwegian Bokmålknallbang, crack, detonation, explosion; !; great!...
2Norwegian Bokmålknalle—
Every word from Proto-Indo-European bʰey- →Every word from Proto-Germanic bijǭ →Every word from Proto-Germanic biją →