-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.
Cartomancy is said to originate with gypsies who prognosticated the future and provided guidance as to how to reveal the personality traits of people.

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If spring water is used in this method or if the diviner uses a sacred pool or spring, then it is termed pegomancy.
The Greeks put metal "mirrors" under the water or held them in a fountain and interpreted the reflections with catoptromancy.
Predictions of catoptromancies were also made by using a glass which was suspended over a holy well; the images on the glass supposedly "revealed" the secrets hidden in the water.
Catoptromancy also included divination based on how a face appeared when it was seen in a "looking glass" underwater.
During the Middle Ages, wax would be melted in a brass container and poured into another vessel containing cold water.
2. A form of divination involving the interpretation of an omen communicated by thunder.
Such tones were given definite interpretation at the ancient Oracle of Dodona.
Predictions written in invisible ink, that appear when papers are heated, come in this general category; and so do greeting cards.

A fortune teller is someone who tells an unmarried man there's a woman in his future, and tells a married man there's a future in his woman.
A cheiromantist is a fortune-teller who palms herself off as a hand reading expert or one who sees prosperity on every hand.
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-.