Well they changed the pronunciation of the the middle part Siwaaqroon to Siwaakhron making it sound more Arabic and not a foreign word.Btw, the Meheri-Harti link isn't just in Somalia. In Oman, we have Harti people that have been Arabised, as they live and intermarry with Meheri and other Proto-Semitic clans.
Unfortunately, these Hartis think they are also originally Arab Somali (they believe the Daarood is Arab myth).
They have names like Al-Siwaaqroon, AlDashishe, Al-Bahante (Dhulbahante) etc. etc.
Imagine having a name with WAAQ in it, and thinking you are originally Arab.
Look here:
Al-Siwaaqroon Wedding.
Siwaaqroon wedding in Oman.
Somalis in the Gulf are generally more integrated in the local Arab society that many of them don't speak Somali at all like I have a Saudi Somali relative who's in his 50s doesn't know the language

