χαλκός (chalkóskhal-kos'nounbrass)
[Grk] χαλκός LN: 2.54, 6.72, 6.95 GK: G5910 Hebrew: נְחוּשָׁה, נְחֹשֶׁת, קַלַּחַת
Derivation: perhaps from χαλάω through the idea of hollowing out as a vessel (this metal being chiefly used for that purpose);
Strong's: copper (the substance, or some implement or coin made of it)
KJV: --brass, money.
See: χαλάω