βελομαντεία → belomancy, bolomancy, divination by use of arrows
Belomancy, also bolomancy, is the ancient art of divination by use of arrows. The word is built upon Greek βέλος belos, "arrow, dart" and μαντεία manteia "divination". Belomancy was anciently practised at least by Babylonians, Greeks, Arabs and Scythians.
https://en.wikipedia.org/wiki/Belomancy