Etymology
Advertisement
machine (v.)

mid-15c., "decide, resolve," from Old French and Latin usages, from Latin machina "machine, engine, military machine; device, trick; instrument," from Greek makhana, Doric variant of Attic mēkhanē "device, tool; contrivance, cunning" (see machine (n.)). Meaning "to apply machinery to, to make or form on or by the aid of a machine" is from 1878. Related: Machined; machining.

Related entries & more 
Advertisement
advocation (n.)

"a calling in of legal assistance," 1520s, from Latin advocationem (nominative advocatio) "a calling or summoning of legal assistance," in Medieval Latin "duty of defense or protection," noun of action from past-participle stem of advocare "to call, summon, invite; call to aid," from ad "to" (see ad-) + vocare "to call," which is related to vox (genitive vocis) "voice" (from PIE root *wekw- "to speak").

Related entries & more 
invocation (n.)
late 14c., "petition (to God or a god) for aid or comfort; invocation, prayer;" also "a summoning of evil spirits," from Old French invocacion "appeal, invocation" (12c.), from Latin invocationem (nominative invocatio), noun of action from past participle stem of invocare "to call upon, invoke, appeal to" (see invoke).
Related entries & more 
support (v.)

late 14c., "to aid," also "to hold up, prop up, put up with, tolerate," from Old French suporter "to bear, endure, sustain, support" (14c.), from Latin supportare "convey, carry, bring up, bring forward," from assimilated form of sub "up from under" (see sub-) + portare "to carry," from PIE root *per- (2) "to lead, pass over." Related: Supported; supporting.

Related entries & more 
cesium (n.)

also caesium, rare alkaline metal, 1861, coined by Bunsen and Kirchhoff in 1860 in Modern Latin (caesium), from Latin caesius "blue-gray" (especially of eyes), in reference to the two prominent blue lines in its spectrum, by which it was first identified. With metallic element ending -ium. The first metal discovered by the aid of a spectroscope.

Related entries & more 
Advertisement
respirator (n.)

1836, "an aid to breathing," originally a sort of metallic gauze mask fitted to the face by a wire frame and meant to keep out smoke, dust, and especially cold air; agent noun from respire. The word was later used of gas masks in World War I. As "machine to provide artificial respiration" from 1929.

Related entries & more 
care package (n.)
1945, originally CARE package, supplies sent out by "Cooperative for American Remittances to Europe," established 1945 by U.S. private charities to coordinate delivery of aid packages to displaced persons in Europe after World War II and obviously named for the sake of the acronym. Name reupholstered late 1940s to "Cooperative for Assistance and Relief Everywhere," to reflect its expanded mission.
Related entries & more 
manufacture (v.)

1680s, "convert material to a form suitable for use," from manufacture (n.). Meaning "to make or fabricate," especially in considerable quantities or numbers, as by the aid of many hands or machinery" is by 1755. Figurative sense of "produce artificially, invent fictitiously, get up by contrivance or effort" is from 1762. Related: Manufactured; manufacturing; manufacturable.

Related entries & more 
vault (v.1)

"jump or leap over," especially by aid of the hands or a pole, 1530s, transitive (implied in vaulting); 1560s, intransitive, from French volter "to gambol, leap," from Italian voltare "to turn," from Vulgar Latin *volvitare "to turn, leap," frequentative of Latin volvere "to turn, turn around, roll" (from PIE root *wel- (3) "to turn, revolve"). Related: Vaulted; vaulting.

Related entries & more 
support (n.)
late 14c., "act of assistance, backing, help, aid," from support (v.). Meaning "that which supports, one who provides assistance, protection, backing, etc." is early 15c. Sense of "bearing of expense" is mid-15c. Physical sense of "that which supports" is from 1560s. Meaning "services which enable something to fulfil its function and remain in operation" (as in tech support) is from 1953.
Related entries & more 

Page 5