To Abate. v.n. To grow less; as, his passion abates; the storm abates. It is used sometimes with the particle of before the thing lessened.
Our physicians have observed, that, in process of time, some diseases have abated of their virulence, and have, in a manner, worn out their malignity, so as to be no longer mortal. Dryden's Hind and Panth.