←
Proto-Germanic *aiks (inherited)←
Proto-Germanic *sundą (inherited)←
Proto-Germanic (mention)←
Proto-Indo-European *h₂éyǵs (inherited)←
Proto-Indo-European *h₂eyǵ- (mention)←
Proto-Indo-European *swm̥tóm (inherited)←
Old Norse eik (mention)←
Old Norse sund (mention)