Origin of pestoItalian past participle of pestare, to pound, grind from Classical Latin pinsere: see pestle
- A sauce consisting of fresh basil, garlic, pine nuts, olive oil, and grated cheese.
- Any of various similar sauces.
Origin of pestoItalian from past participle of pistare, pestare to pound ; see piston .
(usually uncountable, plural pestos)