Pesto

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Italian, from pestare ‘pound, crush’.

wiktionary

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1937, from Italian pesto, from Latin pistus(“crushed, pounded”), from Latin pīnsō(“to pound, beat, crush”). Cognate to pestle. [1]

etymonline

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pesto (n.)

green, aromatic, olive oil-based pasta sauce, a Genoese specialty, 1937, from Italian pesto, contracted form of pestato, past participle of pestare "to pound, to crush," in reference to the crushed herbs and garlic in it, from Latin root of pestle.