Saqaliba
Saqaliba (Arabic: صقالبة, sg. Siqlabi) refers to the Slavs, particularly Slavic slaves and mercenaries in the medieval Arab world, in the Middle East, North Africa, Sicily and Al-Andalus. It is generally thought that the Arabic term is a Byzantine loanword: saqlab, siklab, saqlabi etc. is a corruption of Greek Sklavinoi for "Slavs". The word was also often used more generally to refer to all slaves from Central and Eastern Europe.
Read more about Saqaliba.