I've read a lot of sources in Italian and English and I'm pretty sure the etymon of that wind name is Arabic, but what Arabic word?
- Arabic شروق šurūq;
- Arabic شرقية šarqiyya;
- Tunisian Arabic شلوق šilūk (widely considerd in Italy the etymon of the wind, could be a loan from Italian scirocco);
- Moroccan Arabic شرقي šarqiyy.