From Longman Dictionary of Contemporary Englishsumma cum laudesum‧ma cum lau‧de /ˌsʊmə kʊm ˈlaʊdeɪ, ˌsʌmə kʌm ˈlɔːdi $ ˌsʊmə kʊm ˈlaʊdi/ adverb American English SEChaving achieved the highest level in your college or university degree → cum laude He graduated summa cum laude in 1968.Origin summa cum laude (1900-2000) Latin “with highest praise”