ulmuka
ulmuka-ādibhiḥ — by pieces of burning wood and so on; SB 3.30.25
ulmuka — like a meteor; SB 5.13.3
ulmuka-piśācam — a phosphorescent light known as a will-o'-the-wisp, which is sometimes mistaken for a ghost; SB 5.14.7
ulmuka — like firebrands; SB 10.16.24