The kaffir lime (Citrus hystrix), sometimes referred to in English as the makrut lime or Mauritius papeda, is a citrus fruit native to tropical Asia, including India, Nepal, Bangladesh, Thailand, Indonesia, Malaysia, and the Philippines.Its fruit and leaves are used in Southeast Asian cuisine and its essential oil is used in perfumery. Its rind and crushed leaves emit an intense citrus fragrance.In English, the fruit is known as kaffir lime or makrut lime (magrood lime). The Oxford Companion to Food recommends that the term “makrut lime” be favored over “kaffir lime” because kaffir is an offensive term in some cultures and has no contemporary justification for being attached to this plant. The etymology of the name “kaffir lime” is uncertain, but most likely was used by Muslims as a reference to the location the plant grew, which was populated by non-Muslims. The Arabic word for non-Muslims is kafir.