The obol (or obolus), ancient Greek weight and small coin equaling one-sixth drachma (about 0.7 grams), is famous for its role in burial customs—placed in the deceased's mouth as payment for Charon to ferry souls across the Styx. In poetry concerning death, classical mythology, or ancient commerce, obol carries rich cultural and mythological significance. The term evokes Greek funerary practice, underworld mythology, and the transition between life and death. Poets employed obols when treating themes of mortality, passage, or classical culture, exploiting associations with death ritual and mythological journey.

The obol's association with Charon's ferry payment makes it symbolically central to Greek death poetry and mythology. Students should understand that obol (plural obols or oboloi) was small Greek coin and weight unit (1/6 drachma ≈0.7 grams). The funeral custom of placing an obol in the deceased's mouth provided passage-money across the River Styx. In poetry about death, journey, transition, or Greek mythology, the obol carries rich symbolic weight beyond its monetary value. Understanding the obol as smallest practical coin helps students appreciate it as minimal payment—just enough for necessary passage. The term appears throughout Greek literature and persists in poetry engaging with classical themes. Students should recognize how the obol connects economic measurement to mythological symbolism—the same unit measuring market purchases and death's passage. Related terms include drachma (6 obols), mina, and talent, all Greek weights and currency. For students writing about death, mythology, or classical themes, the obol provides authentic cultural reference with powerful symbolic associations. The obol can represent transition, minimal sufficiency, or the economics of death. The term evokes ferrymen, rivers, underworld, and the price of passage.