Doc

Untouchable comes, almost literally, from 'acchooth', which means the same thing in Hindi.

But the social system of caste was practised throughout South Asia, including places where Hindi is not, and was never, spoken. The idea, or religious group, that we lump together as Hinduism, pervaded virtually all of modern India, Pakistan, Bangladesh and bits of Tibet and Afghanistan. So each area may well have had its own word for untouchable, and pariah seems to be the Tamil version.

That's, I suppose, the best I can do by way of explication on this one.

cheer

the sunshine warrior