guinea
/ˈgɪnɪ/(缩略词：gn.)
noun
1- Brit. the sum of £1.05 (21 shillings in pre-decimal currency), now used mainly for determining professional fees and auction prices〈英〉几尼（1几尼等于1.05英镑, 在十进币制前等于21先令, 现多用于确定专业服务费用和拍卖价格）。
1.1
- historical a former British gold coin that was first minted in 1663 from gold imported from West Africa, with a value that was later fixed at 21 shillings. It was replaced by the sovereign from 1817.〈史〉几尼（旧时英国的一种金币, 最早用从西非进口的黄金于1663年铸成, 后定值为21先令, 1817年起被沙弗林取代）。
词源
named after GUINEA in West Africa.