Definition of orderly book in English:

orderly book

noun

British
Military
  • A regimental or company book in which orders are entered.

    • ‘Indeed, throughout this Orderly Book, one can see that the name "Sir John Johnsons' Regiment" is well deserved; for its colonel evidently chose for its officers those of his friends whom he know by personal experience were staunch and could be relied upon in all emergencies.’
    • ‘The orderly book of Adjutant Crawford shows that on September 20 Collins and nine others were court-martialed for desertion and sentenced to one hundred lashes each, the maximum permissible corporal punishment.’
    • ‘During the period of the American Revolution, most regiments, garrisons and armies recorded the orders issued to the troops in the form of an orderly book.’