③
大量;众多(a mass of = 一大宗)
相关 名词理据由「一整块」扩指「整批之多」——物之成块转为量之累积。
例句
Mass production reduced the price of many goods.大量生产降低了许多商品的价格;由「一整块」扩指「整批之多」(相关·数量)——所聚者众,遂谓大量。She has a mass of work to do today.她今天有一大堆工作要做;同此——事多如聚。
溯源路径本义 → 义项3