Wiktionary
n. A mathematical assumption used to describe a certain phenomenon, posited in order to help provisionally solve an equation or other problem. (from 20th c.)
Wikipedia
In physics and mathematics, an ansatz (; , meaning: "initial placement of a tool at a work piece", plural ansätze ; or ansatzes) is an educated guess that is verified later by its results.
Usage examples of "ansatz".
The planet Ansatz boasts one city, Nightingale, a gem that graces eternal night.
The only reason people usually came to Ansatz was to trade for a Dream.
Although Ansatz was almost tidally locked with Quatrefoil, it wobbled enough so most of its surface received at least a little sunlight.
He was a genius among geniuses, and on Ansatz that translated into power.
He had come to Ansatz hoping for a miracle, to trade for a fabulous treasure.
One of his few comforts on Ansatz had been his pleasure in creating the bird.
He was trapped on Ansatz for life and they both knew she would soon leave.
It led them to settle on Ansatz in the forgiving dark, where they traded the fruits of their genius for dreams, in penance for the sins of their violent siblings.
Nightingales weather machines aided the planets natural convection to keep the climate pleasant, free from the fierce winds the tore at the rest of Ansatz.