inviolate
Concise Oxford English Dictionary © 2008 Oxford University Press:
inviolate /ɪnˈvʌɪələt/
▶adjective free from injury or violation.
– derivatives
inviolacy noun,
inviolately adverb.
inviolacy noun,
inviolately adverb.
– origin ME: from L. inviolatus, from in- ‘not’ + violare ‘violate’.
'inviolate' also found in these Oxford entries:

