spaghetti: [19] Spaghetti comes from the plural of Italian spaghetto, a diminutive form of spago ‘string’ (a word of uncertain origin). The earliest record of its use in English is by Eliza Acton in her Modern Cookery 1849, but it was still sufficiently unfamiliar then for her to mis-spell it sparghetti.
1849 (as sparghetti, in Eliza Acton's "Modern Cookery"), from Italian spaghetti, plural of spaghetto "string, twine," diminutive of spago "cord," of uncertain origin. Spaghetti Western (one filmed in Italy) first attested 1969. Spaghetti strap is from 1972.