cus·pi·date 
(kŭspĭ-dāt′) also cus·pi·dat·ed (-dā′tĭd)
(kŭspĭ-dāt′) also cus·pi·dat·ed (-dā′tĭd)adj.
1. Having a cusp.
2. Biology Terminating in or tipped with a sharp firm point: a cuspidate leaf apex.
[Latin cuspidātus, past participle of cuspidāre, to make pointed, from cuspis, cuspid-, point.]