dēfectīvus — Lewis & Short
dēfectīvus, a, um, adj. [deficio,
I no. III.), imperfect, defective (post-class.):
et abortiva genitura,Tert. adv. Val. 14:
febris,intermittent fever, Cael. Aur. Acut. 2, 10.—
II In gramm.:
nomina, verba, some of whose forms are wanting,defective, Charis. 3.