from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. An ancient Indo-Iranian region, located originally in Central Asia.
- proper n. A people from this region.
The etymology of Kamboja is unclear. It is supposed by some scholars to be related to Kambujiya, although "there are also scholars who denounce a connection between Kamboja and Kambujiya [...] and who defend another etymology". (Wiktionary)