summacum laude

sum·ma cum lau·de (so͝omʹə ko͝om louʹdə, -dā, -dē, sŭmʹə kŭm lôʹdē) 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.]

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