hortative
Urging, exhorting, or encouraging.
The ministration of these oracles from the pulpit is to be reformed from any of its factitious peculiarities, and made again what it was among the apostles and their immediate successors—earnest, simple, powerful address—hortative talk, if we may so call it.
Of a mood or class of imperative subjunctive moods of a verb for giving strong encouragement.
Where it comes from
From Latin hortātīvus, from hortor (“to exhort”).
Adapted from the Wiktionary entry hortative (CC BY-SA 4.0).