Ottoman Turkish language

Ottoman Turkish /ˈɒtəmən/, or the Ottoman language (لسان عثمانى‎‎ Lisân-ı Osmânî) (also known as تركجه‎ Türkçe or تركی‎ Türkî, "Turkish"), is the variety of the Turkish language that was used in the Ottoman Empire. It borrows, in all aspects, extensively from Arabic and Persian, and it was written in the Ottoman Turkish alphabet. During the peak of Ottoman power, Persian and Arabic vocabulary accounted for up to 88% of its vocabulary, while words of Arabic origins heavily outnumbered native Turkish words.

Consequently, Ottoman Turkish was largely unintelligible to the less-educated lower-class and rural Turks, who continued to use kaba Türkçe ("raw/vulgar Turkish", as in Vulgar Latin), which used far fewer foreign loanwords and is the basis of the modern Turkish language. The Tanzimât era saw the application of the term "Ottoman" when referring to the language (لسان عثمانی‎ lisân-ı Osmânî or عثمانليجه‎ Osmanlıca) and the same distinction is made in Modern Turkish (Osmanlıca and Osmanlı Türkçesi).