sum·ma cum lau·de 
(smə km loudə, -dā, -dē, sŭmə kŭm lôdē)
(smə km loudə, -dā, -dē, sŭmə kŭm lôdē)adv. & adj.
With the greatest honor. Used to express the highest academic distinction: graduated summa cum laude; a summa cum laude graduate.
[Latin summā cum laude, with highest praise : summā, feminine ablative of summus, highest + cum, with + laude, ablative of laus, praise.]