 Adûnaic also seems to conform to a variant of the consonantal root system used in Khuzdul (as does its successor language, Westron).It is also one of perhaps only two or three of Tolkien's languages known to possess noun classes, which roughly correspond to four grammatical genders.Although Tolkien created very few original words in Adûnaic, mostly names, the language serves his concept of a lingua franca for Middle-earth, a shared language for many different people.