Definition of bankers' book in English:

bankers' book

(also banker's book)

noun

Law
  • Originally: an account book belonging to a moneylender or money changer. Later: an account book or record showing the transactions of a bank; (now chiefly Law) such a book or record used as evidence in a court of law. Usually in plural Compare bankbook.

Origin

Late 16th century; earliest use found in Samuel Daniel (?1563–1619), poet and historian. Partly from the genitive of banker + book.

Pronunciation

bankers' book

/ˈbaŋkəz ˌbʊk/