The Collaborative International Dictionary of English v.0.48:

Gerundive \Ge*run"dive\, a. [L. gerundivus.]
   Pertaining to, or partaking of, the nature of the gerund;
   gerundial. -- n. (Lat. Gram.) The future passive participle;
   as, amandus, i. e., to be loved.
   [1913 Webster]