Perhaps from the base of chraomai (through the idea of the utility of the metal); gold; by extension, a golden article, as an ornament or coin -- gold.
see GREEK chraomai
χρυσὸν (chruson) − 4 Occurrences
χρυσὸς (chrusos) − 2 Occurrences
χρυσῷ (chrusō) − 3 Occurrences