تعريفة

The Arabic ta'rīfa (تعريفة) derives from the root 'arafa, meaning 'to know' or 'to make known.' A ta'rīfa was a notification, a making-known of prices or fees. In medieval Islamic commerce, which dominated Mediterranean trade, the term referred to schedules of charges—what merchants would pay at ports, markets, and customs houses.

European traders dealing with Arab merchants adopted the term. Spanish rendered it as tarifa, Italian as tariffa. The word proved useful because medieval trade needed standardized schedules of customs duties, and the Arabic term already named exactly this. The town of Tarifa in southern Spain, where such fees were collected from ships passing through the Strait of Gibraltar, may have reinforced the word (though the town's name likely has separate origins).

By the 16th century, 'tariff' had entered English as a term for any schedule of charges, then specifically for government-imposed duties on imports and exports. The word became central to economic policy debates: free trade versus protectionism, tariff wars, tariff retaliation. The Arabic word for 'notification' now names one of the most contentious tools of international economics.

Today tariffs dominate trade policy headlines. Countries impose tariffs to protect domestic industries, punish trading partners, or generate revenue. The word appears in treaties, news reports, and economic analyses worldwide. An Arabic commercial term from medieval markets now governs billions of dollars in global trade.