from the library of (a phrase inscribed in or on a book before the name of the owner): Ex libris Jane Doe.
noun, plural ex li·bris
an inscription in or on a book, to indicate the owner; bookplate.
Origin of ex libris
First recorded in 1875–80, ex libris is from the Latin word ex lībrīs out of the books (of), from the books (of)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for ex libris
Historical Examples of ex libris
The ex-libris of the Citizen Boyveau-Laffecteur may be cited as an example.
The collector must be on his guard against modern reprints from old plates, or ex-libris printed from re-engraved copper plates.
The ex-libris of Lyons are especially notable for their magnitude, as, for example, that of Claude Ruffier.
On account of its extreme rarity this ex-libris had long been the subject of doubt and curiosity to collectors, even Mons.
Unfortunately it was dispersed on his decease, and his ex-libris given herewith is consequently scarce.
British Dictionary definitions for ex libris
from the collection or library of: frequently printed on bookplates
a bookplate bearing the owner's name, coat of arms, etc
Word Origin for ex libris
C19: from Latin, literally: from the books (of)
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 ex libris
Latin, literally "out of the books (of)," from ex "out of" (see ex-) + ablative plural of liber "book" (see library).
Online Etymology Dictionary, © 2010 Douglas Harper