pellagrous

from The Collaborative International Dictionary of English v.0.48

Pellagrous \Pel*lag"rous\, a. [It. pellagroso: cf. F.
   pellagreux.] (Med.)
   Pertaining to, or affected with, or attendant on, pellagra;
   as, pellagrous insanity.
   [Webster 1913 Suppl.]