/
əˈreɪ/
n.
      - an impressive display or range of a particular thing.
 - an ordered arrangement of troops.
 - Mathematics  an arrangement of quantities or symbols in rows and columns; a matrix.
 - Computing  an ordered set of related elements.
 - Law  a list of impanelled jurors.
 - literary elaborate or beautiful clothing.
 
v.
   - display or arrange in a neat or impressive way.
 - 
(be arrayed in)
 be elaborately clothed in.
 - Law  impanel (a jury).
 
Etymology
ME: from OFr. arei (n.), areer (v.), based on L. ad- ‘towards’ + a Gmc base meaning ‘prepare’.