psephomancy
noun/ˈsɛfəˌmænsi/
Etymology From New Latin psēphomantia, from Ancient Greek ψῆφος (psêphos, “pebble used for casting a vote”), + -mancy.
1
Divination by drawing pebbles from a pile.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.