Noun
Nominal governance by a dead person, through posthumous holding of an official position of authority, or by popular veneration and lasting influence of a personal ideology; necrocracy.
The carrying out of mass and organized killing as an official policy of a state.
The enactment of policies held to lead, directly or indirectly, to death or an increased risk of death.
A culture in which rituals relating to the dead play a unique or important role.
(figuratively) Endemic stagnation or decay.
Source: en.wiktionary.org