Where does “gansey” come from?

gansey (English) comes from Irish geansaí, from English Guernsey, from Old Norse ey, from Proto-Norse *ᚨᚢᛃᚢ, from Proto-Germanic awjō, from Proto-Germanic agwjō, from Proto-Indo-European h₂ékʷeh₂ — water.

Ancestry of “gansey”, step by step

StepLanguageWordMeaning
1Irishgeansaísweater, jersey, jumper, guernsey
2EnglishGuernseyA cow of a breed of dairy cattle originally bred...
3Old Norseeyalways, ever; island
4Proto-Norse*ᚨᚢᛃᚢ—
5Proto-Germanicawjōfloodplain; meadow; island
6Proto-Germanicagwjō—
7Proto-Indo-Europeanh₂ékʷeh₂water
Every word from Proto-Indo-European h₂ékʷeh₂ →Every word from Proto-Germanic agwjō →Every word from Proto-Germanic awjō →