Look up: Munus

1. Munus
   (Latin) funeral gift or games for the dead paid for by the descendents of the dead person being honored; literally 'a duty'; these games, or munera, could be held annually or every five years for the purpose of keeping the dead person's memory alive.
   Found on http://ablemedia.com/ctcweb/glossary/glo
   
   
2. munus
   An obligatory gift, something owed, as a funeral was owed to the deceased. Originally it was a bloody fight which took place over the tomb of the deceased, who was to be revived by the blood of the combatants. Subsequently, it became the contribution of gladiatorial games made by a citizen to his community. Also a fatigue duty.
   Found on http://www.encyclo.co.uk/visitor-contrib