just for convenience sake disregarding the "western" Wahabite name-giving,
I found some more info in order to oblige our dear friend Jim
who started this most interesting topic !
Info from one internet site:
"Sabiki is the Yemeni term for a large sword-like variety of the jambiya, the Arab dagger. They are also known as Wahhabite jambiya named after the Wahhabi fundamentalists who were known to wear them. The sabiki is mostly associated with the Asir and Jizan region in the southwest of the Arabian peninsula but was in wider circulation."