Webster's Revised Unabridged Dictionary · 1913

Efflux

Efflux , noun

[See Effluent, Flux.]

1.
The act or process of flowing out, or issuing forth; effusion; outflow; as, the efflux of matter from an ulcer; the efflux of men's piety.
It is then that the devout affections... are incessantly in efflux. — I. Taylor
2.
That which flows out; emanation; effluence.
Prime cheerer, light!... Efflux divine. — Thomson

Efflux , intransitive verb

To run out; to flow forth; to pass away. [Obsolete] — Boyle