Where does “*Álasund” come from?

*Álasund (Old Norse) comes from Old Norse sund, from Proto-Germanic sundą, from Proto-Germanic swimmaną, from Proto-Indo-European swem(bʰ)- — to bend, turn, swing; to be unsteady, move, swim.

Ancestry of “*Álasund”, step by step

*Álasund traces back through two separate lines of ancestry.

via Old Norse sund

StepLanguageWordMeaning
1Old Norsesundswimming; strait, sound; swimming, sound
2Proto-Germanicsundąswimming; sound, strait
3Proto-Germanicswimmanąto be unsteady; to swim; float
4Proto-Indo-Europeanswem(bʰ)-to bend, turn, swing; to be unsteady, move, swim

via Old Norse áll

StepLanguageWordMeaning
1Old Norseálleel
2Proto-Germanicēlazeel
Every word from Proto-Indo-European swem(bʰ)- →Every word from Proto-Germanic swimmaną →Every word from Proto-Germanic sundą →