The Collaborative International Dictionary
Disenroll
Disenroll \Dis`en*roll"\, v. i. [imp. & p. p. Disenrolled; p.
pr. & vb. n. Disenrolling.]
To erase from a roll or list. [Written also disenrol.]
--Donne.
Wiktionary
disenroll
vb. (context transitive English) To cancel enrolment; to remove oneself from a list.