Bullion

Origin

From Middle English bulloin, bullioun, from Anglo-Norman bullion, of obscure origin, perhaps from French bouillon, extending the sense to that of 'melting'. Middle Dutch boelioen ("base metal") seems to have come from the unrelated French billon.

Full definition of bullion

Noun

1. A bulk quantity of precious metal, usually gold or silver, assessed by weight and typically cast as ingots.
2. (obsolete) base or uncurrent coin
• SylvesterAnd those which eld's strict doom did disallow,
  And damn for bullion, go for current now.
3. (obsolete) showy metallic ornament, as of gold, silver, or copper, on bridles, saddles, etc.
• SkeltonThe clasps and bullions were worth a thousand pound.
4. (obsolete) A heavy twisted fringe, made of fine gold or silver wire and used for epaulets; also, any heavy twisted fringe whose cords are prominent.