/ ˈnætʃəʊz; NAmE -tʃoʊz/ noun
[ pl. ] (from Spanish ) a Mexican dish of crisp pieces of tortilla served with beans , cheese, spices, etc.
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WORD ORIGIN
perhaps from Mexican Spanish Nacho , pet form of Ignacio , given name of the chef credited with creation of the dish. An alternative derivation is from Spanish nacho flat-nosed.