The Collaborative International Dictionary
Recarbonize
Recarbonize \Re*car"bon*ize\ (r[-e]*k[aum]r"b[o^]n*[imac]z), v. t. (Metal.) To restore carbon to; as, to recarbonize iron in converting it into steel.
Wiktionary
recarbonize
vb. (context transitive English) To restore carbon to.