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exfiltrate

[eks-fil-treyt, eks-fil-treyt]
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verb (used without object), ex·fil·trat·ed, ex·fil·trat·ing.
  1. to escape furtively from an area under enemy control.
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verb (used with object), ex·fil·trat·ed, ex·fil·trat·ing.
  1. to smuggle (military personnel) out of an area under enemy control.
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Origin of exfiltrate

First recorded in 1965–70; ex-1 + (in)filtrate
Related formsex·fil·tra·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018