死灵的英文

the soul of a deceased person; a ghost; a specter; an apparition; the spirit of the dead; the deceased soul; the departed spirits

如果祭祀是做动词worship the undead(擅自把你的亡灵改成不死来翻译了，应该比较合适）如果是名词 the Undead sacrificial/worship

亡灵 the soul of a deceased person

The necromancer

soul of the dead / soul of the deceased 用来指较多的死去的人，如战亡的人、遭遇灾难而死的人。也可用soul of the deceased warriors/soul of the sacrifice.如果用来形容使先人安息，就用Let the soul of <> be appeased. appease是安息的意思。

the soul of a deceased person

亡灵[wáng líng]词典ghost; the soul of a deceased person; spectre