degenerate
‘having lost or suffered impairment to the qualities proper to the race or kind’
Lexical development traced from the Tamil root:
Lat. degeneratus < degenerare ‘to be inferior to one's ancestors, to become unlike one's race or kind, fall from ancestral quality’ < de genere < de ‘off, away from’ + genere < genus ‘birth, descent’ < jen < gene- < Tamil īṉ