διαρροή

δῐᾰρρέω (dĭărrhéō) +‎ -η (-ē).

δῐᾰρροή • (dĭărrhoḗ) f (genitive δῐᾰρροῆς); first declension

1. that through which something flows: a channel, pipe
2. flowing through, current

• Greek: διαρροή (diarroḯ)

• “διαρροή”, in Liddell & Scott (1940), A Greek–English Lexicon, Oxford: Clarendon Press
• διαρροή in Bailly, Anatole (1935), Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
• “διαρροή”, in Liddell & Scott (1889), An Intermediate Greek–English Lexicon, New York: Harper & Brothers
• διαρροή, in ΛΟΓΕΙΟΝ [Logeion] Dictionaries for Ancient Greek and Latin (in English, French, Spanish, German, Dutch and Chinese), University of Chicago, since 2011

From Ancient Greek διαρροή (diarrhoḗ), invoking the sense of "flowing through" > "the thing that flows".

διαρροή • (diarroḯ) f (plural διαρροές)

1. leak (in pipe, tank, etc.)
2. (figuratively) leak (disclosure of confidential information), defection, loss

• διαρρέω (diarréo, “to leak, to drain”)

• διαρροή, in Λεξικό της κοινής νεοελληνικής [Dictionary of Standard Modern Greek], Triantafyllidis Foundation, 1998 at the Centre for the Greek language