Where does “Ásbjörn” come from?

Ásbjörn (Icelandic) comes from Old Norse Ásbjǫrn, from Old Norse Áss, from Proto-Germanic astaz, from Proto-Indo-European h₃ósdos — branch.

Ancestry of “Ásbjörn”, step by step

StepLanguageWordMeaning
1Old NorseÁsbjǫrn—
2Old NorseÁssa thick pole, main beam (in a house)
3Proto-Germanicastazbranch
4Proto-Indo-Europeanh₃ósdosbranch
Every word from Proto-Indo-European h₃ósdos →Every word from Proto-Germanic astaz →Every word from Old Norse Áss →