Japanic ("-ic" = produced by, consisting of)
Japanesque ("-esque" = in the manner or style of)
Japanoid ("-oid" = like or resembling, but not exactly being)
Japannish ("-ish" = somewhat, approximately)
Japanescent ("-escent" = starting to be, becoming)
= shin-go = "new" + "language" = newly coined term
-- Tadaaki Hiruki, 23 March 1999