Used chiefly in rhetorical and linguistic terminology to denote a genre of discourse or a grammatical mood.
Definitionen
A speech or form of discourse intended to persuade an audience about future action; the deliberative genre in classical rhetoric. Aristotle distinguishes the deliberative from the forensic and epideictic in his rhetorical theory.
The deliberative mood in grammar, expressing doubt or inquiry about a possible course of action. In Classical Greek, the deliberative occurs in questions such as "τί ποιήσω;" ('What am I to do?').