Entry: sisam
Grammar: n.
Meaning: 1) phantom, apparition of someone's disembodied spirit seen wandering about outside of and often far away from his body during a delirium or coma associated with a serious or terminal illness; a sisam sighting is usually indicative of the impending death of the person whose spirit has been seen wandering; 2) the ghost of a person who has died in the absence of others or at an unknown moment
Derivation: [si- die + sam spirit]