Where does “Vestfirðir” come from?

Vestfirðir (Icelandic) comes from Icelandic fjörður, from Old Norse fjǫrðr, from Proto-Norse ᚠᛖᚱᚦᚢᛉ, from Proto-Germanic ferþuz, from Proto-Indo-European pértus, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “Vestfirðir”, step by step

Vestfirðir traces back through two separate lines of ancestry.

via Icelandic fjörður

StepLanguageWordMeaning
1Icelandicfjörðurfjord, although occasionally a geyser
2Old Norsefjǫrðrfirth, fjord
3Proto-Norseᚠᛖᚱᚦᚢᛉ
4Proto-Germanicferþuzinlet, fjord
5Proto-Indo-Europeanpértuscrossing
6Proto-Indo-Europeanper-before, in front; first; to go through
7Proto-Indo-Europeanpr̥tóspassed , crossed

via Icelandic vestur

StepLanguageWordMeaning
1Icelandicvesturwest
2Old Norsevestrwest, westwards
3Proto-Germanicwestrąwest; west, westward
4Proto-Germanicwestrazwest, western
5Proto-Indo-Europeanwek(ʷ)sperosevening
6Proto-Indo-Europeanwe-
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Proto-Indo-European pértus