dead-pay

from The Century Dictionary.

• noun Continued pay dishonestly drawn for soldiers and sailors actually dead; a person in whose name pay is so drawn.

from the GNU version of the Collaborative International Dictionary of English.

• noun Pay drawn for soldiers, or others, really dead, whose names are kept on the rolls.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Pay drawn for soldiers, or others, really dead, whose names are kept on the rolls.
• noun A dead soldier whose pay is illicitly claimed by another person.