1590s, "to pour over, overwhelm in a flood, inundate;" see deluge (n.). Figurative sense of "overrun like a flood, pour over in overwhelming numbers" is from 1650s. Related: Deluged; deluging.
late 14c., "an overflowing of water, a great flood, Noah's Flood in Genesis," from Old French deluge (12c.), earlier deluve, from Latin diluvium "flood, inundation," from diluere "wash away," from dis- "away" (see dis-) + -luere, combining form of lavere "to wash" (from PIE root *leue- "to wash"). Figurative sense of "anything that overflows or floods" is from early 15c.
After me the deluge (F. après moi le déluge), a saying ascribed to Louis XV, who expressed thus his indifference to the results of his policy of selfish and reckless extravagance, and perhaps his apprehension of coming disaster. [Century Dictionary]
It forms all or part of: ablution; alluvium; deluge; dilute; elution; lather; latrine; launder; lautitious; lavage; lavation; lavatory; lave; lavish; lotion; lye.
It is the hypothetical source of/evidence for its existence is provided by: Greek louein "to wash, bathe;" Latin lavare "to wash," luere "to wash;" Old Irish loathar "basin," Breton laouer "trough;" Old English leaþor "lather," læg "lye."
Abbreviate is the same word directly from Latin. The sound development that turned Latin -vi- to French -dg- is paralleled in assuage (from assuavidare) and deluge (from diluvium). Of writing, "shorten by omission," late 14c. Related: Abridged; abridging.
"a deluge, a flood," originally especially "Noah's flood," 1630s, from French cataclysme (16c.), from Latin cataclysmos or directly from Greek kataklysmos "deluge, flood, inundation," from kataklyzein "to deluge," from kata "down" (see cata-) + klyzein "to wash," from PIE *kleue- "to wash, clean" (see cloaca).
"spending or bestowing profusely," mid-15c., laves, from Old French lavasse,lavache (n.) "a torrent of rain, deluge" (15c.), from laver "to wash," from Latin lavare "to wash" (from PIE root *leue- "to wash"). Related: Lavishly; lavishness.
"relating to or of the nature of a flood," 1650s, from Latin diluvium "flood, inundation," from diluere "wash away," from dis- "away" (see dis-) + -luere, combining form of lavere "to wash" (from PIE root *leue- "to wash"). Related: Diluvianism (1816) "geological theory supposing the occurrence of a former universal deluge."