/di sid"euhr euh tiv, -euh ray'tiv/ , adj.
1. having or expressing desire.
2. Gram. (of a verb derived from another verb) expressing desire to perform the action denoted by the underlying verb, as Sanskrit pi-patis-ati "he wishes to fly" from pát-ati, "he flies."
n.
3. Gram. a desiderative verb.
[ 1545-55; desiderativus. See DESIDERATE, -IVE ]