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Related to perron: Perrin
1. A platform at the entrance of a large building.
2. A flight of steps leading to such a platform.
[Middle English peroun, block of stone used as a platform, from Old French perrun : pierre, stone (from Latin petra, stone, rock; see petrify) + -on, -un, diminuitive suffix (from Latin -ō, -ōn-, n. suff.)]
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.
(Architecture) an external flight of steps, esp one at the front entrance of a building
[C14: from Old French, from pierre stone, from Latin petra]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
per•ron(ˈpɛr ən; Fr. pɛˈrɔ̃)
n., pl. per•rons (ˈpɛr ənz; Fr. pɛˈrɔ̃)
an outside platform upon which the entrance door of a building opens, with steps leading to it.
[1350–1400; Middle English < Middle French, Old French, derivative of pierre stone < Latin petra < Greek pétra]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.