flat-iron
‘iron for smoothing’
Lexical development traced from the Tamil root:
flat + M.E. iron < O.E. iren variant (with rhotacism of -s-) of isen < Proto-G. isarn < Ce. isarnon < is-(e)ro ‘powerful, holy’ < ai < eis ‘strong’ < Tamil irumpu
flat-iron
English words derived from Tamil irumpu connoting 'iron'