corollary

Where does the word "corollary" come from? It comes from Latin corollarium, and was adopted directly into English (1300s).

Corollary’s story begins in Latin: corollarium meant “a gift, a small garland.” Literally a small garland given as a gift, from corolla (a small crown). It reached English by 1300s as corollary. Settled as the word for a proposition following naturally from another. Today, corollary means a proposition that follows naturally from one already proven, or a natural consequence.

1. Stage 1 · Latin · ancient corollarium "a gift, a small garland", literally a small garland given as a gift, from corolla (a small crown).
2. Stage 2 · English · 1300s corollary "a proposition that follows from one already proven", settled as the word for a proposition following naturally from another.