Brooding
来自Big Physics
Old English brōd, of Germanic origin; related to Dutch broed and German Brut, also to breed. The verb was originally used with an object, i.e. ‘to nurse (feelings) in the mind’ (late 16th century), a figurative use of the idea of a hen nursing chicks under her wings.
etymonline
brooding (adj.)
1640s, "hovering, persistently overhanging" (as a mother bird does her nest), from present participle of brood (v.); meaning "that dwells moodily" first attested 1818 (in "Frankenstein").
brooding (n.)
"action of incubating," c. 1400, verbal noun from brood (v.). Figuratively (of weather, etc.) from 1805; of mental fixations by 1873. Related: Broodingly.
