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.
Romance languages
This was the pattern followed by the Romance languages: In the Romance languages that still preserved a functioning nominal case system (e.g., Romanian and Old French), only the combination of article and case ending serves to uniquely identify number and case (compare the similar situation in modern German). All Romance languages have a definite article (originally developed from "ipse" "self" but replaced in nearly all languages by "ille" "that (over there)") and an indefinite article (developed from "ūnus" "one"). Many also have a partitive article ("dē" "of" + definite article).