The definition of hortative is a choice of words that encourage action.(adjective)
An example of a hortative sentence is, "Just try it at least once!"
See hortative in American Heritage Dictionary 4
Origin: Late Latin hortātīvus
Origin: , from Latin hortātus
Origin: , past participle of hortārī, to exhort; see gher-2 in Indo-European roots.