Source : Webster's Revised Unabridged Dictionary (1913)

Hortatory \Hor"ta*to*ry\, a. [L. hortatorius.]
   Giving exhortation or advise; encouraging; exhortatory;
   inciting; as, a hortatory speech. --Holland.

Source : WordNet®

hortatory
     adj : giving strong encouragement [syn: {exhortative}, {exhortatory},
            {hortative}]