lobe: [16] Greek lobós denoted ‘something round’, such as the circular part of the ear or the liver, or a round seed pod. It came from a prehistoric *logwós, a close relative of which produced Latin legūmen ‘seed pod’ (source of English legume [17]). Lobós was borrowed into late Latin as lobus, and from there made its way into English. => legume[lobe etymology, lobe origin, 英语词源]