subfusc
noun /ˈsʌbfʌsk/, /ˌsʌbˈfʌsk/
/ˈsʌbfʌsk/, /ˌsʌbˈfʌsk/
[uncountable]- formal clothing worn for examinations and formal occasions by students at Oxford UniversityWord Originearly 18th cent.: from Latin subfuscus, from sub- ‘somewhat’ + fuscus ‘dark brown’.