nefarious
‘unlawful, very wicked’
Lexical development traced from the Tamil root:
Lat. nefarius ‘wicked, abominable, impious’ < nefas ‘crime, wrong, impiety’ < ne- ‘not’ + fas ‘right, lawful, divinely spoken’ < nuh < ne- < Tamil al
nefarious
English words derived from Tamil al connoting 'negation'