1970s; earliest use found in Comparative Studies in Society and History. From Japanese nikkeijin from nikkei Japanese descent + -jin person, people (from Middle Chinese).
Definition of nikkeijin in US English:
nikkeijin
(also nikkei-jin)
nounnɪˈkeɪdʒɪn
Nikkei.
Origin
1970s; earliest use found in Comparative Studies in Society and History. From Japanese nikkeijin from nikkei Japanese descent + -jin person, people (from Middle Chinese).