Aegrotat.

Aegrotat. He is sick. Also translated as, 'A note from the doctor.' In British universities, an aegrotat is an official medical excuse. The meaning is extended to mean that an unclassified degree may be granted by a British university to a student who completes all academic requirements except final examinations, if the student is too sick to part...
Found on http://www.wordinfo.info/words/index/info/view_unit/3055/11
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