graffiti: [19] Although it denotes ‘writing’, graffiti has no etymological connection with Greek gráphein, source of English graphic. It comes from the plural of Italian graffito, a diminutive form of the noun graffio ‘scratching’. This was derived from the verb graffiare ‘scratch’, itself originally formed from graffio ‘hook’. [graffiti etymology, graffiti origin, 英语词源]