The Hattic word ḫapalki
Word ḫapalki
Meaning iron
See also Greek: χάλυψ ‘hardened iron, steel’
Hurrian: ḫabalgi ‘iron’

Comments
Greek χάλυψ = hardened iron, steel

Other words that might be of interest
pu/bu ‘to do, make’, ḫamuruwa ‘beam, rafter’, ureš ‘smith’, ḫel ‘to strew, pour’, tiḫ ‘to build’, tewū ‘to pour’, kinawar ‘copper’, pakku ‘hammer’, kurkupal ‘peg, nail’, ḫil ‘to pour’, arzili ‘tin’, *arkiw- ‘canopy, awning’, ziḫartail ‘carpenter’