צָרַף tsâraph (H6884)

to fuse (metal), i.e. refine (literally or figuratively)

1) to smelt, refine, test 1a) (Qal) 1a1) to smelt, refine 1a2) to test 1a3) to test (and prove true) 1a4) smelter, refiner, goldsmith (participle) 1b) (Niphal) to be refined 1c) (Piel) to be a refiner 1c1) refiner (participle)

a primitive root;