←
Old English trēow (cognate)
←
Proto-Germanic *trewą (inherited)
←
Old Frisian trē (cognate)
←
Old Saxon treo (cognate)
→
Old English treow (cognate)
→
Scanian træ (inherited)
→
Icelandic tré (derived)
→
Norwegian Bokmål tre (inherited)
→
Norwegian Nynorsk tre (inherited)
→
Old Norse -inn (mention)
→
Swedish träd (inherited)