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liaise

[lee-eyz]
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verb (used without object), li·aised, li·ais·ing.
  1. to form a liaison.
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Origin of liaise

First recorded in 1925–30; back formation from liaison
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for liaising

liaise

verb
  1. (intr usually foll by with) to communicate and maintain contact (with)
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Word Origin

C20: back formation from liaison
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for liaising

liaise

v.

1928, back-formation from liaison. Said to be a coinage of British military men in World War I. Related: Liaised; liaising.

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Online Etymology Dictionary, © 2010 Douglas Harper