1911 Encyclopædia Britannica/Array

ARRAY (from the O. Fr. areyer, Med. Lat. arredare, to get ready), an orderly arrangement, particularly the drawing up of an army in position of battle. From the 13th century onwards in England “Commissions of Array” issued from the king for the levy of military forces (see Militia). In English law the term is used for the setting in order, name by name, of the panel of a jury, which may be challenged as a whole, “to the array,” or individually, “to the polls.”