Webster's Revised Unabridged Dictionary · 1913

Lenitive

Lenitive (-tiv) , adjective

[Compare French lénitif. See Lenient.]

Having the quality of softening or mitigating, as pain or acrimony; assuasive; emollient.

Lenitive , noun

[Compare French lénitif.]

1.
(a) (Medicine) A medicine or application that has the quality of easing pain or protecting from the action of irritants.
(b)
(Medicine) A mild purgative; a laxative.
2.
That which softens or mitigates; that which tends to allay passion, excitement, or pain; a palliative.
There is one sweet lenitive at least for evils, which Nature holds out; so I took it kindly at her hands, and fell asleep. — Sterne