Where does “Espen” come from?

Espen (Norwegian) comes from Danish Esben, from Old Norse Ásbjǫrn, from Old Norse Áss, from Proto-Germanic astaz, from Proto-Indo-European h₃ósdos — branch.

Ancestry of “Espen”, step by step

StepLanguageWordMeaning
1DanishEsbenderived from
2Old NorseÁsbjǫrn—
3Old NorseÁssa thick pole, main beam (in a house)
4Proto-Germanicastazbranch
5Proto-Indo-Europeanh₃ósdosbranch
Every word from Proto-Indo-European h₃ósdos →Every word from Proto-Germanic astaz →Every word from Old Norse Áss →