-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

probably orig. < Italian -ese, later representing Spanish, Portuguese -es, French -ais, -ois, all < Latin -ēnsem -ensis

British Dictionary definitions for -ese

-ese

suffix, suffix

indicating place of origin, language, or style: Cantonese, Japanese, journalese

Word Origin and History for -ese

word-forming element from Old French -eis (Modern French -ois, -ais), from Vulgar Latin, from Latin -ensem, -ensis "belonging to" or "originating in."