nativus (n<<schwa>>-tI-v<<schwa>>s), n.[Law Latin] Hist. A person who is born a villein or serf.

“Having seen what serfdom means, we may ask how men become serfs. The answer is that almost always the serf is a born serf; nativus and villanus were commonly used as interchangeable terms ….” 1 Frederick Pollock & Frederic W. Maitland, The History of English Law Before the Time of Edward I 422 (2d ed. 1898).

[Blacks Law 8th]