impost1

 
Pronunciation: /ˈɪmpəʊst/

noun

  • 1a tax or similar compulsory payment: some of the labels are used for the purpose of collecting Customs duty or other imposts
  • 2 Horse Racing the weight carried by a horse as a handicap.

Origin:

mid 16th century: from French (earlier form of impôt), from medieval Latin impostus, from Latin impositus, past participle of imponere (see impose)