abacomancy
Divination using dust, dirt, silt, sand, ashes, or smoke. Patterns in the medium under various circumstances are interpreted to envision future events.
rare, uncountable
Hekuba planned every single day of Calliope, Gadukz's and even to a lesser amount Castor's life since the moment one of the royal Slaugh foresaw their union with her powers of Abacomancy.
Where it comes from
Translingual: from Hebrew אָבָק (avák, “dust”), and from Ancient Greek μαντεία (manteía, “prophecy”).
Adapted from the Wiktionary entry abacomancy (CC BY-SA 4.0).