-ese
a suffix forming adjectival derivatives of place names, especially countries or cities; frequently used nominally to denote the inhabitants of the place or their language: Faroese; Japanese; Vietnamese; Viennese. By analogy with such language names, -ese occurs in coinages denoting in a disparaging, often facetious way a characteristic jargon, style, or accent: Brooklynese; bureaucratese; journalese; computerese.
Origin of -ese
probably orig. < Italian
-ese, later representing Spanish, Portuguese
-es, French
-ais, -ois, all < Latin
-ēnsem
-ensis
British Dictionary definitions for -ese
-ese
suffix forming adjectives, suffix forming nouns
indicating place of origin, language, or style
Cantonese; Japanese; journalese