[go: up one dir, main page]
Advertisement

Origin and history of orbit

orbit(n.)

late 14c., "the eye-socket, the bony cavity of the skull which contains the eye," from Old French orbite or directly from Medieval Latin orbita, a transferred use of Latin orbita "wheel track, beaten path, rut, course" (see orb). The astronomical sense of "circular or elliptical path of a planet or comet" (recorded in English from 1690s; later also of artificial satellites) was in classical Latin and was revived in Gerard of Cremona's translation of Avicenna. The Old English word for "eye socket" was eaghring.

orbit(v.)

"revolve round in an orb," by 1867, from orbit (n.). Related: Orbited; orbiting.

also from 1867

Entries linking to orbit

orb(n.)

mid-15c., "sphere, globe, something spherical or circular, orbit of a heavenly body," from Old French orbe "orb, globe" (13c.) and directly from Latin orbem (nominative orbis) "circle, disk, ring, hoop, orbit," probably related to orbita "wheel track, rut," a word of unknown and much-disputed origin. Watkins suggests a connection with the root of orchid. De Vaan suggests *horbi- "turning thing."

A three-dimensional extension of a word originally describing two-dimensional shapes. The ancient astronomical sense is in reference to the hollow "spheres" that carried each of the planets and the stars through their heavenly motions in the Ptolemaic system. Used poetically of the earth, sun, or moon from 1590s; used rhetorically of the eye from 1650s. As a verb from c. 1600.

Orb-weaver in reference to spiders that make webs formed of lines radiating from a central point (as distinguished from tube- or tunnel-weavers) is recorded from 1889.

de-orbit(v.)

of a spacecraft, "to leave or move out of orbit," 1958, from de- + orbit. Related: De-orbited; de-orbiting.

Advertisement

More to explore

revolve
late 14c., revolven, "to change; change direction, bend around," from Old French revolver and directly from Latin revolvere "roll back, unroll, unwind; happen again, return; go over, repeat," from re- "back, again" (see re-) + volvere "to roll" (from PIE root *wel- (3) "to turn,
sphere
a re-Latinized spelling, attested beginning mid-15c., of Middle English spere (c. 1300) "cosmos; space, conceived as a hollow globe about the world," from Anglo-French espiere, Old French espere (13c., Modern French sphère), from Latin sphaera "globe, ball, celestial sphere" (Med
domain
c. 1600, "territory over which dominion is exerted," from French domaine "domain, estate," from Medieval Latin domanium "domain, estate," from Latin dominium "property, dominion," from dominus "lord, master, owner," from domus "house" (from PIE root *dem- "house, household"). A l
eccentric
early 15c., "eccentric circle or orbit," originally a term in Ptolemaic astronomy, "circle or orbit not having the Earth...
perigee
Now only of the moon, formerly used also for the corresponding point in the orbit of any celestial body. Compare apogee....
aphelion
"point farthest from the sun" (of a celestial body's orbit), 1670s, a Grecianized form of Modern Latin aphelium (itself attested...
intramercurial
"being within the orbit of the planet Mercury," 1859, especially in reference to a supposed planet orbiting there (sought...
skull
"cranium, the bony framework of the head," c. 1200, sculle, probably from Old Norse skalli "a bald head, skull," a general Scandinavian word (compare Swedish skulle, Norwegian skult), itself probably related to Old English scealu "husk" (see shell (n.)). But early prominence in s
land
Old English lond, land, "ground, soil," also "definite portion of the earth's surface, home region of a person or a people, territory marked by political boundaries," from Proto-Germanic *landja- (source also of Old Norse, Old Frisian Dutch, Gothic land, German Land), perhaps fro
circulate
1540s as a chemical term in reference to alternating vaporization and condensation, from Latin circulatus, past participle of circulare "to form a circle," from circulus "small ring" (see circle (n.)). Intransitive sense of "to pass about freely, pass from place to place or perso

Share orbit

Advertisement
Trending
Dictionary entries near orbit
Advertisement