Romani people
Most Romani speak one of several dialects of the Romani language, an Indo-Aryan language, with roots in Sanskrit. They also often speak the languages of the countries they live in. Typically, they also incorporate loanwords and calques into Romani from the languages of those countries and especially words for terms that the Romani language does not have. Most of the "Ciganos" of Portugal, the Gitanos of Spain, the Romanichal of the UK, and Scandinavian Travellers have lost their knowledge of pure Romani, and respectively speak the mixed languages Caló, Angloromany, and Scandoromani. Most of the speaker communities in these regions consist of later immigrants from eastern or central Europe.
Romani language
In the 18th century, it was shown by comparative studies that Romani belongs to the Indo-European language family. In 1763 Vályi István, a Calvinist pastor from Satu Mare in Transylvania, was the first to notice the similarity between Romani and Indo-Aryan by comparing the Romani dialect of Győr with the language (perhaps Sinhalese) spoken by three Sri Lankan students he met in the Netherlands. This was followed by the linguist Johann Christian Christoph Rüdiger (1751–1822) whose book ' (1782) proved Romani was descended from Sanskrit. This prompted the philosopher Christian Jakob Kraus to collect linguistic evidence by systematically interviewing the Roma in Königsberg prison. Kraus's findings were never published, but they may have influenced or laid the groundwork for later linguists, especially August Pott and his pioneering ' (1844–45). Research into the way the Romani dialects branched out was started in 1872 by the Slavicist Franc Miklošič in a series of essays. However, it was the philologist Ralph Turner's 1927 article “The Position of Romani in Indo-Aryan” that served as the basis for the integrating Romani into the history of Indian languages.