'Smith' is PIE *smey- (to cut) — once any skilled craftsman, even poets. Now mainly metalworkers.
A worker in metal; especially one who forges iron or steel. Also the most common English-language surname.
From Old English 'smiþ' (one who works in metal, a craftsman), from Proto-Germanic *smiþaz, from PIE *smey- (to cut, to work with a sharp instrument). The PIE root connects the smith's craft to the fundamental act of cutting and shaping — the same root that produced Greek 'smī́lē' (carving knife, scalpel) and possibly Old Irish 'smīth.' The word originally referred to any skilled craftsman, not only a metalworker; Old English 'smiþ' could mean a carpenter, a poet