pariah |pəˈrīə|

noun
1 an outcast: they were treated as social pariahs.
2 historical a member of a low caste in southern India.

ORIGIN early 17th cent.: from Tamil paṛaiyar, plural of paṛaiyan ‘(hereditary) drummer,’ from paṛai ‘a drum’ (pariahs not being allowed to join in with a religious procession).