←
English thorn (cognate)
←
Proto-Germanic *þurnuz (inherited)
←
Proto-West Germanic *þorn (inherited)
←
Old Frisian thorn (inherited)
←
Old Frisian turn (inherited)
←
Saterland Frisian Tudden (alter)
←
Saterland Frisian torn (mention)
←
Saterland Frisian Tudden (alter)