v. To furnish with dress, or equipment, especially those for military service; to equip; to attire; to array.
The Century Dictionary and Cyclopedia
To dress, equip, or furnish; specifically, array in a military dress; put on or furnish with accoutrements.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. provide with military equipment
Word Usage
"Today is St. Patrick's Day — you know, that day when you accoutre yourself with assorted green items raided from the local Poundland or EuroSt.re and imbibe vast quantities of a black alcoholic beverage with lots of froth on top."