means A tax or duty imposed by a government on imported or exported goods, often expressed as a published schedule of rates.

from From the Italian 'tariffa,' meaning a list of prices or a table of charges, which traces back to the Arabic 'ta'rīf' — 'a notification' or 'making known,' from the root '‘arafa,' to know or inform. The word sailed into European commerce through the busy Mediterranean trade, where Arabic merchants and customs houses were setting the terms; so at its heart a tariff is simply an announcement of what you'll be charged, dressed up over centuries into the bureaucracy of borders.