Where does “au” come from?

au (Norwegian Bokmål) comes from Old Norse auk, from Proto-Germanic auk, from Proto-Indo-European h₂ewg-, from Proto-Indo-European h₂weg-, from Proto-Indo-European h₂ug-.

au (Norwegian Bokmål): also, too; ouch!

Definitions

  1. also, too; ouch!

Ancestry of “au”, step by step

StepLanguageWordMeaning
1Old Norseaukand
2Proto-Germanicaukalso, too; furthermore, in addition; and
3Proto-Indo-Europeanh₂ewg-to increase, to enlarge
4Proto-Indo-Europeanh₂weg-to increase, to enlarge
5Proto-Indo-Europeanh₂ug-—
Every word from Proto-Indo-European h₂ug- →Every word from Proto-Indo-European h₂weg- →Every word from Proto-Indo-European h₂ewg- →