-mancy, -mancer, -mantic, -mantical
(Greek: used as a suffix; divination, prophecy, fortune telling; to interpret signs so “practical” decisions can be made [related to -mania])
It isn't so much the things we don't know that gets us into trouble. It's the things we know that aren't so.
If you keep on saying things are going to be bad, you have a good chance of being a prophet.
2. Divination with sacrificial remains or sacred objects; by observing the things offered as sacrifices; including entrails.

If on leaving the temple at the out-break of hostilities, the horses crossed the temple threshold with the left forefoot first, the prophecy was regarded as an evil omen and the war was abandoned. A horse’s pace was also interpreted.
2. Divination with water or other liquids; such as, tides and ebbs; by having a small boy tell what he has seen in the water.
Interpreting the color and patterns of flowing water; sometimes ripples are studied as stones are dropped into quiet water.
2. Divination by examining the heads and/or entrails of fish for prophetic signs or processing the next fish caught.
2. Divination by using images or icons.
The answers may come through dreams, by drawing lots, or anything else that believers may attribute to the power of such images.
If crackling occurred as a name was called, it was assumed that the accused was guilty. The head of an ass was also used.
Cross references of word families that are related directly, or indirectly, to: "divination, diviner; seer, soothsayer, prophecy, prophesy, prophet": augur-; auspic-; fa-, fate; Fates in action; futur-; omen; -phemia; sorc-, sorcery; vati-.
A cross reference of other word family units that are related directly, or indirectly, to: "chance, luck, fate": aleato-; auspic-; cad-; fortu-; serendipity; sorc; temer-; tycho-.