Definition of ex libris in English:

ex libris

adverb

  • Used as an inscription on a bookplate to show the name of the book's owner.

    ‘ex libris Edith Wharton’

noun

  • A bookplate inscribed to show the name of the book's owner.

Origin

Latin, literally ‘out of the books or library (of someone)’.

Pronunciation

ex libris

/ɛks ˈlʌɪbrɪs//ɛks ˈlɪbrɪs/