cos·tume

1. a set of clothes in a style typical of a particular country or historical period.

   "

   uniform

   livery

   array

   regalia

   clothes

   garments

   robes

   getup

   gear

   togs

   garms

   duds

   glad rags

   clobber

   kit

   strip

   rig-out

   threads

   apparel

   raiment

   habiliments

   vestments

   vesture

   habit

1. dress (someone) in a particular set of clothes.

   "the  fake whistleblowers are elaborately costumed in silly, bizarre imagery to remind others their claims are 'mental."