Graffiti

google

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mid 19th century: from Italian (plural), from graffio ‘a scratch’.

wiktionary

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Borrowed from Italian graffiti.

etymonline

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graffiti (n.)

1851, "ancient wall inscriptions found in the ruins of Pompeii," from Italian graffiti, plural of graffito "a scribbling," a diminutive formation from graffio "a scratch or scribble," from graffiare "to scribble," ultimately from Greek graphein "to scratch, draw, write" (see -graphy). They are found in many ancient places, but the habit was especially popular among the Romans. Sense extended 1877 to recently made crude drawings and scribbling in public places.