beehive n.

stinging insect of the genus Apis, living in societies under a queen and producing wax and honey, Old English beo "bee," from Proto-Germanic *bion (source also of Old Norse by, Old High German bia, Middle Dutch bie), from PIE root *bhei- "bee."

Used metaphorically for "busy worker" since 1530s. The sense of "meeting of neighbors to unite their labor for the benefit of one of their number" is by 1769, American English, probably is from comparison to the combined labor and social activity of the insect: Raising-bee (1814) for building construction; quilting bee (1824, see quilt (v.)); logging-bee for a log-rolling; paring-bee for preparing harvested apples; also hanging bee "a lynching"). It was extended to other situations (such as spelling bee, attested by 1809).

To have a bee in (one's) bonnet (1825), of one who is harebrained or has an intense new notion or fancy, is said in Jamieson to be Scottish, perhaps from earlier expressions such as head full of bees (1510s), denoting mad mental activity.

Old English hyf "beehive," from Proto-Germanic *hufiz (source also of Old Norse hufr "hull of a ship"), from PIE *keup- "round container, bowl" (source also of Sanskrit kupah "hollow, pit, cave," Greek kypellon "cup," Latin cupa "tub, cask, vat;" see cup (n.)). Figurative sense of "swarming, busy place" is from 1630s.

loose ("open") star cluster (M44) in Cancer, 1650s, from Latin praesaepe the Roman name for the grouping, literally "enclosure, stall, manger, hive," from prae "before" (see pre-) + saepire "to fence" (see septum).

It is similar to the Hyades but more distant, about 600 light-years away (as opposed to about 150 for the Hyades), consists of about 1,000 stars, mostly older, the brightest of them around magnitude 6.5 and thus not discernible to the naked eye even on the clearest nights, but their collective light makes a visible fuzz of nebular glow that the ancients likened to a cloud (the original nebula); Galileo was the first to resolve it into stars (1609).

The modern name for it in U.S. and Britain, Beehive, seems no older than 1840. Greek names included Nephelion "Little Cloud" and Akhlys "Little Mist." "In astrology, like all clusters, it threatened mischief and blindness" [Richard Hinckley Allen, "Star Names and Their Meanings," 1899].

"Manger" to the Romans perhaps by influence of two nearby stars, Gamma and Delta Cancri, dim and unspectacular but both for some reason figuring largely in ancient astrology and weather forecasting, and known as "the Asses" (Latin Aselli), supposedly those of Silenus.