efflux

[ef-luhks]
noun
  1. outward flow, as of water.
  2. something that flows out; effluence.
  3. a passing or lapse of time.
  4. a passing away; expiration; ending.
Also ef·flux·ion [ih-fluhk-shuh n] /ɪˈflʌk ʃən/ (for defs 3, 4).

Origin of efflux

1635–45; < Medieval Latin effluxus, equivalent to Latin ef- ef- + fluc-, variant stem of fluere to flow + -sus, for -tus suffix of v. action
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Word Origin and History for effluxion

efflux

n.

1640s, from Latin effluxus, past participle of effluere (see effluence).

Online Etymology Dictionary, © 2010 Douglas Harper