the.com/mayo

means A thick, creamy condiment made by emulsifying egg yolk with oil, usually brightened with a little lemon juice or vinegar.

from Almost certainly short for 'mayonnaise,' a French word whose own origin is murky and argued over — one popular story ties it to Mahón, the port city on Minorca, supposedly commemorated after a French victory there in the 1700s. Other theories point to French dialect words for egg yolk or to 'moyeu,' an old French term for yolk. No version is confirmed, so the sauce's name stays as unsettled as the debate over putting it on fries.