ex libris

from WordNet (r) 3.0 (2006)

ex libris
    n 1: a label identifying the owner of a book in which it is
         pasted [syn: {bookplate}, {ex libris}]

from The Collaborative International Dictionary of English v.0.48

Ex libris \Ex` li"bris\ [L. ex from + libris books.]
   An inscription, label, or the like, in a book indicating its
   ownership; esp., a bookplate.
   [Webster 1913 Suppl.]