I always thought that the word "island" was just short for "isolated land" -- There has to be some reason there's an 's' in there right?. But some etymologist told me it didn't come to be in that manner.
In ancient english we didn’t have pronouns. So when cavemen looked at far away land all they had was “is land?” and when they finally got there on the backs of dinosaurs, they said “yes is land”.