sul·tan 
(sŭltən)
(sŭltən)n.
1. A ruler of a Muslim country, especially of the former Ottoman Empire.
2. A powerful person: a sultan of vice and corruption.
[French, from Old French, ruler of Turkey, from Turkish, from Arabic sulṭān, from Aramaic šulṭānā, ruler, from šəlaṭ, to rule; see šlṭ in the Appendix of Semitic roots.]