Mleccha
/ˈmlɛtʃhə/(also Mlechcha, Mlechchha, Mlechha)
noun
Originally, in ancient India: a non-Aryan or person of an outcaste race; a barbarian. In later use: a person who does not conform with conventional Hindu beliefs and practices; a foreigner.
Origin
Late 18th century. From Sanskrit mleccha barbarian, non-Aryan from mlecch- to speak incomprehensibly, of uncertain origin.