In N’ko texts the word for “diploma” (from a school) is jɔnbɔn (ߖߐ߲ߓߐ߲).
For example in this post on Facebook talking about a purported N’ko diploma available in the US:
ߡߐ߰ ߘߴߛߋ߫ ߒߞߏ ߖߐ߲ߓߐ߲ ߛߐ߬ߘߐ߲߬ ߠߊ߫ ߤߊߙߑߝ߭ߊߙߘ ߖߊ߯ߓߘߊ ߡߐ߬ߟߐ߲߬ߡߊ߬ߓߊ ߟߊ߫
‘People can obtain an N’ko diploma at the prestigious university of Harvard’