Etymology
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Velox (n.)
type of photographic print paper made by a process patented 1893 by Leo Baekeland, who sold it to George Eastman in 1899 for $1 million and used the money to build the laboratory where he made great discoveries in plastics (see Bakelite).
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velocity (n.)
early 15c., from Latin velocitatem (nominative velocitas) "swiftness, speed," from velox (genitive velocis) "swift, speedy, rapid, quick," of uncertain origin, perhaps related to vehere "carry" (from PIE root *wegh- "to go, move, transport in a vehicle"), or from PIE *weg-slo-, suffixed form of root *weg- "to be strong, be lively."
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velociraptor (n.)

1924, from Latin velox (genitive velocis) "swift, speedy" (see velocity) + raptor "robber" (see raptor). Fossil remains discovered in 1923 in the red Djadochta sandstone at Shabarakh Usu in Mongolia.

The first (Fig. 1) of the typical megalosaurian type, although of small size, seems to have been an alert, swift-moving carnivorous dinosaur to which the generic name Velociraptor is applied. [Henry Fairfield Osborn, "Three New Therapoda, Protoceratops Zone, Central Mongolia," in American Museum Novitates, Nov. 7, 1924]
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*weg- 
Proto-Indo-European root meaning "to be strong, be lively."

It forms all or part of: awake; bewitch; bivouac; invigilate; reveille; surveillance; vedette; vegetable; velocity; vigil; vigilant; vigilante; vigor; waft; wait; wake (v.) "emerge or arise from sleep;" waken; watch; Wicca; wicked; witch.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit vajah "force, strength," vajayati "drives on;" Latin vigil "watchful, awake," vigere "be lively, thrive," velox "fast, lively," vegere "to enliven," vigor "liveliness, activity;" Old English wacan "to become awake," German wachen "to be awake," Gothic wakan "to watch."
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velocipede (n.)

1819, "wheeled vehicle propelled by alternate thrusts of each foot on the ground," 1819, from French vélocipède (19c.), from Latin velox (genitive velocis) "swift, speedy" (see velocity) + pedem, accusative of pes "foot" (from PIE root *ped- "foot"). The mechanical ancestor of the bicycle, it was tinkered with and improved; the name continued for some time and was applied to an early kind of modern bicycle or tricycle from 1849. See bicycle (n.).

The Velocipede has been introduced into England, under letters patent, by Mr. Johnson, a coachmaker in Long-Acre, by whom it has been greatly improved, both in lightness and strength. "The road from Ipswich to Whitton," says the Bury paper, "is travelled every evening by several pedestrian hobby-horses; no less than six are seen at a time, and the distance, which is 3 miles, is performed in 15 minutes." [The Athenaeum, May 1, 1819]
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