Where does “Snake Island” come from?

Snake Island (English) comes from English Island, from English iland, from Middle English iland, from Old English īeġland, from Old English īeġ, from Proto-West Germanic auwju, from Proto-Germanic awjō, from Proto-Germanic agwjō — water.

Ancestry of “Snake Island”, step by step

Snake Island traces back through two separate lines of ancestry.

via English Island

StepLanguageWordMeaning
1EnglishIslandLong Island (in New York State)
2EnglishilandArchaic form of island
3Middle Englishiland
4Old Englishīeġlandisland
5Old Englishīeġisland
6Proto-West Germanicauwjufloodplain; meadow; island
7Proto-Germanicawjōfloodplain; meadow; island
8Proto-Germanicagwjō
9Proto-Indo-Europeanh₂ékʷeh₂water

via English snake

StepLanguageWordMeaning
1EnglishsnakeA legless reptile of the sub-order Serpentes with...
2Middle Englishsnakesnake; serpent
3Old Englishsnacasnake
4Proto-Germanicsnakôsnake
5Proto-Germanicsnakanąto crawl
6Proto-Indo-Europeansneg-to crawl, creeping thing
Every word from Proto-Indo-European h₂ékʷeh₂Every word from Proto-Germanic agwjōEvery word from Proto-Germanic awjō