鬼火

will-o'-the-wisp / jack-o'-lantern

ghost / demon / terrible / damnable / clever / sly / crafty / (suffix for sb with a certain vice or addiction etc) / one of the 28 constellations

fire / urgent / ammunition / fiery or flaming / internal heat (Chinese medicine) / hot (popular) / classifier for military units (old) / Kangxi radical 86