Where does “īg” come from?

īg (Old English) comes from Proto-Germanic awjō, from Proto-Germanic agwjō, from Proto-Indo-European h₂ékʷeh₂ — water.

Ancestry of “īg”, step by step

StepLanguageWordMeaning
1Proto-Germanicawjōfloodplain; meadow; island
2Proto-Germanicagwjō—
3Proto-Indo-Europeanh₂ékʷeh₂water
Every word from Proto-Indo-European h₂ékʷeh₂ →Every word from Proto-Germanic agwjō →Every word from Proto-Germanic awjō →