conservation
‘the act of preserving something’
Lexical development traced from the Tamil root:
E. conseruacion, conservacioun, conservatyon, conseruation, conservacion < Lat. conservationem ‘a keeping, conserving, preserving’ < conservare ‘to keep, preserve, keep intact, guard’ < com- + servare ‘keep watch, maintain’ < suhv < ser- < Tamil iṟai