>>3567622>is this true?
Though there are different theories about the origin of the name Kurd. According to one theory, it originates in Middle Persian as كورت kwrt-, a term for "nomad; tent-dweller". After the Muslim conquest of Persia, this term was adopted into Arabic as kurd-, and was used specifically for nomadic tribes.
The ethnonym Kurd may ultimately derive from an ancient toponym in the upper Tigris basin. According to the English Orientalist Godfrey Rolles Driver, the term Kurd is related to the Sumerian Karda which was found in Sumerian clay tablets of the third millennium B.C. He wrote in a paper published in 1923 that the term Kurd was not used differently by different nations and by examining the philological variations of Karda in different languages, such as Cordueni, Gordyeni, Kordyoui, Karduchi, Kardueni, Qardu, Kardaye, Qardawaye, he finds that the similarities undoubtedly refer to a common descent.
As for the Middle Persian noun kwrt- originating in an ancient toponym, it has been argued that it may ultimately reflect a Bronze Age toponym Qardu, Kar-da, which may also be reflected in the Arabic (Quranic) toponym Ǧūdī (re-adopted in Kurdish as Cûdî). The name would be continued in classical antiquity as the first element in the toponym Corduene, and its inhabitants, mentioned by Xenophon as the tribe of the Carduchoi who opposed the retreat of the Ten Thousand through the mountains north of Mesopotamia in the 4th century BC. This view is supported by some recent academic sources which have considered Corduene as proto-Kurdish region. Alternatively, kwrt- may be a derivation from the name of the Cyrtii tribe instead.
According to some sources, by the 16th century, there seems to develop an ethnic identity designated by the term Kurd among various Northwestern Iranian groups, without reference to any specific Iranian language.