ironing
‘the act or process of pressing clothes with a heated iron’
Lexical development traced from the Tamil root:
M.E. iron < O.E. iren variant (with rhotacism of -s-) of isen < Proto-G. isarn < Proto-G. isarn < Ce. isarnon + ing < is-(e)ro ‘powerful, holy’ < ai < eis < Tamil irumpu