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Related to French leave: French kiss
An informal, unannounced, or abrupt departure.
[From the 18th-century French custom of leaving without saying goodbye to the host or hostess.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
an unauthorized or unannounced absence or departure
[C18: alluding to a custom in France of leaving without saying goodbye to one's host or hostess]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a departure without ceremony, permission, or notice: Taking French leave, he evaded his creditors.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
French leave- Comes from the French custom of leaving a ball or dinner without saying goodbye to the host or hostess.
See also related terms for host.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
French leaven to take French leave → filarsela all'inglese
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995