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consumable (adj.)[consumable 词源字典]: 1640s, from consume + -able.[consumable etymology, consumable origin, 英语词源]
consumables (n.): "articles of consumption," 1802, from consumable.
consume (v.): late 14c., from Old French consumer "to consume" (12c.) and directly from Latin consumere "to use up, eat, waste," from com-, intensive prefix (see com-), + sumere "to take," from sub- "under" + emere "to buy, take" (see exempt (adj.)).
consumer (n.): early 15c., "one who squanders or wastes," agent noun from consume. In economic sense, "one who uses up goods or articles" (opposite of producer) from 1745. Consumer goods is attested from 1890. In U.S., consumer price index calculated since 1919, tracking "changes in the prices paid by urban consumers for a representative basket of goods and services" [Bureau of Labor Statistics]; abbreviation CPI is attested by 1971.
consumerism (n.): 1944, "protection of the consumer's interest," from consumer + -ism. Also, "encouraging consumption as an economic policy" (1960). Related: Consumerist (1965, n.; 1969, adj.).
consummate (adj.): mid-15c., from Latin consummatus "perfected, complete," past participle of consummare "sum up, complete" (see consummation). Of persons, "accomplished, very qualified," from 1640s. Related: Consummately.
consummate (v.): 1520s, "to bring to completion," from Latin consummatus, past participle of consummare "to sum up, make up, complete, finish" (see consummation). Meaning "to bring a marriage to completion" (by sexual intercourse) is from 1530s. Related: Consummated; consummating.
consummated (adj.): 1640s, "perfected," past participle adjective from consummate (v.). Of marriage, from 1709; earlier consummate (adj.) was used in this sense (1530s).
consummation (n.): late 14c., "completion," from Latin consummationem (nominative consummatio), from consummat-, past participle stem of consummare "to sum up, finish," from com- "together" (see com-) + summa "sum, total," from summus "highest" (see sum (n.)). Sense of "completion of a marriage (by sexual intercourse)" is c. 1530.
consumption (n.): late 14c., "wasting of the body by disease; wasting disease" (replacing Old English yfeladl "the evil disease"), from Old French consumpcion, from Latin consumptionem (nominative consumptio) "a using up, wasting," noun of state from past participle stem of consumere (see consume). Meaning "the using up of material" is 1530s.
consumptive (adj.): early 15c., "wasteful," also with reference to pulmonary consumption, from Latin consumpt-, stem of consumere (see consume) + -ive. As a noun, attested from late 14c.
contact (v.): 1834, "put in contact," from contact (n.). Meaning "get in touch with" is 1927, American English. Related: Contacted; contacting.
contact (n.): 1620s, "action of touching," from Latin contactus "a touching," from past participle of contingere "to touch, seize," from com- "together" (see com-) + tangere "to touch" (see tangent (adj.)).

Figurative sense of "connection, communication" is from 1818. As a signal to the person about to spin an aircraft propeller that the ignition is switched on, the word was in use by 1913. Contact lens is first recorded 1888; short form contact is from 1961.
contagion (n.): late 14c., from Old French contagion, from Latin contagionem (nominative contagio) "a touching, contact, contagion," related to contingere "touch closely" (see contact (n.)).
contagious (adj.): late 14c., from Old French contagieus (Modern French contagieux), from Late Latin contagiosus, from Latin contagio (see contact (n.)).
contain (v.): late 13c., from Old French contein-, stem of contenir, from Latin continere (transitive) "to hold together, enclose," from com- "together" (see com-) + tenere "to hold" (see tenet). Related: Containable.
container (n.): mid-15c., agent noun from contain.
containment (n.): 1650s, "action or fact of containing," from contain + -ment. As an international policy of the West vs. the Soviet Union, recorded from 1947.
contaminate (v.): early 15c., from Old French contaminer, from Latin contaminatus, past participle of contaminare "to defile," from contamen "contact, pollution," from com- "together" (see com-) + *tag-, base of tangere "to touch" (see tangent (adj.)). Related: Contaminant (1934); contaminable.
contamination (n.): early 15c., from Latin contaminationem (nominative contaminatio), noun of action from past participle stem of contaminare (see contaminate). Figurative sense is from c. 1620; specifically of radioactivity from 1913.