/ee"groh tat', ee groh"tat/ , n. Brit.
an unclassified degree granted a university student who has fulfilled all requirements for graduation but was prevented by illness from attending the final examinations.
[ 1860-65; aegrotat lit., he is sick (pres. 3rd sing. of aegrotare ), equiv. to aegrot ( us ) sick ( aeg ( e ) r sick + -otus adj. suffix) + -at 3rd sing. ending ]