lotyoudaoicibaDictYouDict[lot 词源字典]
lot: [OE] Lot goes back to a prehistoric Germanic *khlut-, which appears to have denoted the use of objects to make decisions by chance (Old English hlot was used for such an object). The first inklings of the modern range of senses did not emerge until the 18th century, when lot began to be used for a ‘set of things’. ‘Large number, many’ followed in the 19th century. The Germanic word was borrowed into the Romance languages, and of its descendants English has acquired allot [16] (from Old French) and lotto [18] (from Italian). Lottery [16] comes from the Dutch derivative loterij.
=> allot, lottery, lotto[lot etymology, lot origin, 英语词源]
lot (n.)youdaoicibaDictYouDict
Old English hlot "object (anything from dice to straw, but often a chip of wood with a name inscribed on it) used to determine someone's share," also "what falls to a person by lot," from Proto-Germanic *khlutom (cognates: Old Norse hlutr "lot, share," Old Frisian hlot "lot," Old Saxon hlot, Middle Dutch, Dutch lot, Old High German hluz "share of land," German Los; Old English hleotan "to cast lots, to foretell"), of unknown origin. The object was placed with others in a receptacle, which was shaken, the winner being the one that fell out first. Hence, to cast lots. In some cases the lots were drawn by hand. The word was adopted from Germanic into the Romanic languages (compare lottery, lotto). Meaning "choice resulting from the casting of lots" first attested c. 1200.

Sense of "plot of land" is first recorded 1630s (distribution of the best property in new settlements often determined by casting lots), that of "group, collection" is 1725, from notion of auction lots. The generalized sense of "great many" is first attested in 1812. To cast (one's) lot with another is to agree to share winnings.