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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," 1946, from orbit (n.). Related: Orbited; orbiting.

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Definitions of orbit from WordNet
1
orbit (n.)
the (usually elliptical) path described by one celestial body in its revolution about another;
he plotted the orbit of the moon
Synonyms: celestial orbit
orbit (n.)
a particular environment or walk of life;
he's out of my orbit
Synonyms: sphere / domain / area / field / arena
orbit (n.)
an area in which something acts or operates or has power or control: "the range of a supersonic jet";
in the political orbit of a world power
Synonyms: scope / range / reach / compass / ambit
orbit (n.)
the path of an electron around the nucleus of an atom;
Synonyms: electron orbit
orbit (n.)
the bony cavity in the skull containing the eyeball;
Synonyms: eye socket / cranial orbit / orbital cavity
2
orbit (v.)
move in an orbit;
The moon orbits around the Earth
The planets are orbiting the sun
electrons orbit the nucleus
Synonyms: orb / revolve
From wordnet.princeton.edu