Where does “versed sine” come from?

versed sine (English) comes from New Latin sinus versus — flipped sine.

versed sine (English): The trigonometric function 1 − cos

Definitions

  1. The trigonometric function 1 − cos

Ancestry of “versed sine”, step by step

StepLanguageWordMeaning
1New Latinsinus versusflipped sine

Words derived from “versed sine

Every word from New Latin sinus versus