Where does “dōorn” come from?

dōorn (Middle Dutch) comes from Old Dutch thorn, from Proto-Germanic þurnuz, from Proto-Indo-European tr̥nós, from Proto-Indo-European (s)ter- — strong, firm, stiff, rigid; rigid, stiff; to...

Ancestry of “dōorn”, step by step

StepLanguageWordMeaning
1Old Dutchthornthorn, spine of a plant
2Proto-Germanicþurnuzthorn, briar
3Proto-Indo-Europeantr̥nóssharp, stiff
4Proto-Indo-European(s)ter-strong, firm, stiff, rigid; rigid, stiff; to...
Every word from Proto-Indo-European (s)ter- →Every word from Proto-Indo-European tr̥nós →Every word from Proto-Germanic þurnuz →