Wadaad (w-d-d) follows the typical Semitic triconsonantal roots, found in various Ethiopian Semitic languages and has cognates with other Semitic languages and can't be found in Lowland East languages like Oromo or Konso.Take off your extremist nationalist lenses and use common sense for a very brief moment walaal.
This is from a Ge'ez (ancient Aksumite dictionary): SEMITIC: Ar. wadda 'love', SAr (Sabaic). s/l-wdd 'consent agree', m-It'd 'friend (or ruler)', Heb. ydd in Yidid 'beloved', Syr (Syriac. y'added 'love', Ug, ydd 'belov~d; . H olm a 152, n.2 identifies it with Arabic. waada'make firm, stabili ze', EnlloPlc; Amharic. wiiddiidii 'love', Argobba. waddaada , Har wadaada, Gur. wadaada; Tna. tawadaada 'agree with one another, join together (intr), concur', Amh, tawaddadaa 'be joined, fitted together'.
Also the term Wad (w-d) which is different from  W-d-d is also of Ethio-Semitic origin:
Wad'a (y.dii') go out, go forth, come out, come forth, depart, exceed, emerge, leave,
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The only way you can win this argument is by bringing forth evidence of proto-east lowland Cushitic reconstructed word with the same meaning and pronunciation.We both know you can't Mr.Italiano De Sud Somaliana nationalist 
