Where does “Kolby” come from?

Kolby (English) comes from English Colby, from Old Norse kol, from Proto-Germanic kulą, from Proto-Indo-European gʷol-, from Proto-Indo-European ǵwelH- — to burn; to shine.

Ancestry of “Kolby”, step by step

StepLanguageWordMeaning
1EnglishColbyA soft, moist, mild cheese made with a...
2Old Norsekolcoal
3Proto-Germanickulącoal
4Proto-Indo-Europeangʷol-—
5Proto-Indo-EuropeanǵwelH-to burn; to shine
Every word from Proto-Indo-European ǵwelH- →Every word from Proto-Indo-European gʷol- →Every word from Proto-Germanic kulą →