Manes
Manes were in ancient Rome, spirits of the dead. Generally, the manes were “good spirits”; the Di Manes were divine spirits. The term “manes” also referred to an individual spirit of the dead, to underworld deities and to the underworld. The Romans placated manes with offerings called religiousae.
The Encyclopedia of Ghosts and Spirits – Written by Rosemary Ellen Guiley – September 1, 2007