Possible Clues:

• Language of old peasant on island
• The back one in India, in a manner of speaking
• Peasant and I both used this language
• Party extremists expelled for language
• Answers to capitalized clues are loanwords from this language
• Dhi for an Indian, in a manner of speaking?
• Language whence 'jungle' and 'shampoo'
• Language that gave us 'pajamas'
• Language assimilated by each individual
• Ind. Language