OriginFrom Latin nabla, from Ancient Greek νάβλα (nábla, “Phoenician harp”), from ancient Hebrew נֵבֶל (nḗḇel) or a Phoenician cognate. Doublet of nebel, which comes via the modern Hebrew נֵ֤בֶל.
- A Hebrew stringed instrument.
- The symbol ∇, used to denote the gradient operator.
Formsnablas(plural) · nevel(alternative)