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orbit [orbit 词源字典]: orbit: [16] Orbit comes from Latin orbita. This was a derivative of the noun orbis, which originally meant ‘circle, disc’. It was applied metaphorically to a number of circular things, including the ‘circular path of a satellite’ (from which the main meaning of orbit comes) and also the ‘eye socket’, and eventually came to be applied to ‘spheres’ as well as ‘circles’ – whence English orb [16].
=> orb[orbit etymology, orbit origin, 英语词源]
chassis (n.): "base frame of an automobile," 1903, American English; earlier "window frame" (1660s), from French châssis "frame," Old French chassiz (13c.) "frame, framework, setting," from chasse "case, box, eye socket, snail's shell, setting (of a jewel)," from Latin capsa "box, case;" see case (n.2) + French -is, collective suffix for a number of parts taken together. Compare sash (n.2).
ophthalmo-: before vowels ophthalm-, word-forming element meaning "eye," mostly in plural, "the eyes," from Greek ophthalmo-, comb. form of ophthalmos "eye," originally "the seeing," of uncertain origin. Perhaps from ops "eye" (see optic) + a form related to thalamos "inner room, chamber" (see thalamus), giving the whole a sense of "eye and eye socket."
orbit (n.): late 14c., "the eye socket," from Old French orbite or directly from Medieval Latin orbita, transferred use of Latin orbita "wheel track, beaten path, rut, course, orbit" (see orb). Astronomical sense first recorded 1690s in English; it was in classical Latin, revived in Gerard of Cremona's translation of Avicenna. The Old English word for "eye socket" was eaghring.
orbital (adj.): 1540s, with reference to eye sockets; 1839 with reference to heavenly bodies; from orbit (n.) + -al (1).