incumbent 

‘imposed as an obligation or a duty’

Lexical development traced from the Tamil root:

    Med.Lat. incumbentem ‘holder of a church position’ < Lat. incumbere ‘recline on’ < in- ‘on’ + -cumbere ‘lie down’ < uhn < en < Tamil il-iṉ

Technical words derived from 'incumbent'

superincumbent - மேற்கிடக்கின்ற; acting incumbent - மாற்றாள், முறைப்பணிப் பொறுப்பாளர்; incumbent, permanent - பதவி நிலை உரிமையர்.

English words derived from Tamil il-iṉ connoting 'attaining'