Perdu /(pẽr*dū" [or] pẽr"dū̇)/

Per·du

Perdu

n.
  1. One placed on watch, or in ambush.
  2. A soldier sent on a forlorn hope.

Perdu

a.
  1. Lost to view; in concealment or ambush.
    He should lie perdue who is to walk the round.
  2. Accustomed to, or employed in, desperate enterprises; hence, reckless; hopeless.