theorem

Where does the word "theorem" come from? It comes from Greek theorema, and was adopted directly into English (1500s).

Theorem’s story begins in Greek: theorema meant “a thing to be considered.” A thing to be looked at or considered, from theorein (to look at). It reached English by 1500s as theorem. Settled as the word for a statement proven from other established statements. Today, theorem means a mathematical statement proven true through logical reasoning.

1. Stage 1 · Greek · ancient theorema "a thing to be considered", a thing to be looked at or considered, from theorein (to look at).
2. Stage 2 · English · 1500s theorem "a statement proven true through logical argument", settled as the word for a statement proven from other established statements.