In your opinion, why do the following Arabic words share some degree of similarity with their Proto-Germanic synonyms ?
English / German / Proto-Germanic / Arabic
Neck / Halz / Annaka / onk (عنق)
Ear / Ohr / Auzan / ouzan (أذن)
Hand / Hand / Handu / yadu (يد)
Mother / Mutter / Ammon / ommon (ام)
Father / Vater / Appon / appon (اب)
Proto-Germanic dictionary : Gerhard Köbler, Germanisches Wörterbuch 1980, 2. A. 1982