←
Proto-Germanic *trewą (inherited)
←
Old Danish apæld (derived)
←
Proto-Indo-European (mention)
←
Proto-Indo-European *dóru (inherited)
←
Proto-Indo-European *drew- (mention)
←
Norwegian Bokmål abild (compound)
←
Norwegian Bokmål tre (compound)
←
Old Norse apaldr (inherited)
←
Old Norse tré (inherited)