Where does “cosinus” come from?

cosinus (Norwegian Nynorsk) comes from New Latin cosinus, from Latin complementi sinus.

cosinus (Norwegian Nynorsk): cosine

Definitions

  1. cosine

Ancestry of “cosinus”, step by step

StepLanguageWordMeaning
1New Latincosinusco-pocket
2Latincomplementi sinus—
Every word from Latin complementi sinus →Every word from New Latin cosinus →
cosinus — Etymology, Origin & Word History | Etymology Explorer