英语词源字典 - 在线词源网站

divide (n.)[divide 词源字典]: 1640s, "act of dividing," from divide (v.). Meaning "watershed, separation between river valleys" is first recorded 1807, American English.[divide etymology, divide origin, 英语词源]
drumlin (n.): 1833, diminutive of drum (1725) "ridge or long, narrow hill," often separating two parallel valleys, from Gaelic and Irish druim "back, ridge."
Favonius: personification of the west wind in Roman mythology, from Latin Favonius, which de Vaan suggests is cognate with the god-name Faunus (see faun), from a prehistoric noun meaning "who favors" (see favor (n.)):
This also yields a good semantic motivation: the wind that stimulates vegetation can be called favourable. Favonius was regarded by the Romans as the herald of spring and the start of new vegetation (e.g. Cato Agr. 50.1, Cicero Ver. 5.27, Lucretius 1.11, Vitruvius 2.9.1).
The Latin word is the source (via Old High German phonno, 10c., via Vulgar Latin contraction *faonius) of German Föhn "warm, dry wind blowing down Alpine valleys." Related: Favonian.
mull (n.): "promontory" (in Scottish place names), late 14c., perhaps from Old Norse muli "a jutting crag, projecting ridge (between two valleys)," which probably is identical with muli "snout, muzzle." The Norse word is related to Old Frisian mula, Middle Dutch mule, muul, Old High German mula, German Maul "muzzle, mouth." Alternative etymology traces it to Gaelic maol "brow of a hill or rock," also "bald," from Old Celtic *mailo-s (cognates: Irish maol, Old Irish máel, máil, Welsh moel).
Pyrenees: 1550s, from French Pyrénées, from Latin Pyrenæi montes, from Greek Pyrene, name of a daughter of Bebryx/Bebrycius who was beloved of Herakles; she is said to be buried in these mountains (or that the mountains are the tomb Herakles reared over her corpse). The name is said to mean literally "fruit-stone," but Room says it might be Greek pyr "fire" + eneos "dumb, speechless," which perhaps translates or folk-etymologizes a Celtic goddess name. "In medieval times there was no overall name for the range and local people would have known only the names of individual mountains and valleys" [Room, Adrian, Place Names of the World, 2nd ed., McFarland & Co., 2006]. Related: Pyrenean.
watershed (n.): "line separating waters flowing into different rivers," 1803, from water (n.1) + shed in a topographical sense of "ridge of high ground between two valleys or lower ground, a divide," perhaps from shed (v.) in its extended noun sense of "the part of the hair of the head" (14c.). Perhaps a loan-translation of German Wasser-scheide. Figurative sense is attested from 1878. Meaning "ground of a river system" is from 1878.