←
Old English þorn (cognate)
←
Old Church Slavonic трънъ (cognate)
←
English thorn (cognate)
←
Proto-Indo-Iranian *tŕ̥nam (inherited)
←
Proto-Indo-Aryan *tŕ̥nam (inherited)
←
Proto-Indo-European *tr̥nós (inherited)
←
Old Norse þorn (cognate)
→
English thorn (cognate)
→
Old English þorn (cognate)
→
Old Church Slavonic трънъ (cognate)
→
Old Saxon thorn (cognate)
→
Serbo-Croatian trn (cognate)
→
Serbo-Croatian трн (mention)