[mass noun](Stock Exchange)(Brit.)the normal situation in which the spot or cash price of a commodity is lower than the forward price (股票)(英)期货溢价,期货升水。 常与 backwardation 相对 ■(historical)a percentage paid by a buyer of stock to postpone transfer to a future settling day (史)交易延期费,延期日息
语源
mid 19th cent.: probably an arbitrary formation on the pattern of Latin verb forms ending in -o in the first person singular, perhaps with the idea 'I make contingent' (see contingent)