A few words from the Turkish language have entered English; mostly from traders and soldiers from and in the Ottoman Empire.

araba

bosh

Cossack

horde

janissary

kavass

khan

kiosk

kumiss

pasha

turkey (the bird)

turquoise

Urdu (from the word for camp, since Urdu was used in military camps)

yoghurt

See also: Lists of English words of international origin