From tsaraph; refiner; Tsorephi (with the article), an Israelite -- goldsmith's.
see HEBREW tsaraph
H6885. tsorephi
צֹרְפִי noun [masculine] collective goldsmiths; — only ׳בֶּןהַֿצּ Nehemiah 3:31 i.e. belonging to the goldsmiths, a member of their guild.