enclave
‘area surrounded by a foreign territory’
Lexical development traced from the Tamil root:
F. enclave < O.F. enclaver ‘enclose, comprise, include’ < La.Lat. inclavare ‘shut in, lock up’ < Lat. in- ‘in’ + clavis ‘key’ < eng < en < Tamil il-iṉ
enclave
English words derived from Tamil il-iṉ connoting 'attaining'