The Collaborative International Dictionary of English v.0.48:

Cuspidate \Cus"pi*date\ (-d?t), v. t.
   To make pointed or sharp.
   [1913 Webster] Cuspidate

The Collaborative International Dictionary of English v.0.48:

Cuspidate \Cus"pi*date\ (k?s"p?-d?t), Cuspidated \Cus"pi*da`ted\
   (-d?`t?d), a. [L. cuspidatus, p. p. of cuspidare to make
   pointed, fr. cuspis. See Cusp.]
   Having a sharp end, like the point of a spear; terminating in
   a hard point; as, a cuspidate leaf.
   [1913 Webster]

WordNet (r) 3.0 (2006):

cuspidate
    adj 1: having cusps or points [syn: cuspate, cuspated,
           cusped, cuspidal, cuspidate, cuspidated]