constant (n.) Look up constant at Dictionary.com
1832 in mathematics and physics, from constant (adj.).
Constantinople Look up Constantinople at Dictionary.com
the proper name from 330 C.E. to 1930 C.E. of what is now Istanbul, from Greek Konstantinou polis "Constantine's city," named for Roman emperor Flavius Valerius Aurelius Constantinus, whose name is derived from Latin constans (see constant (adj.)).
constellation (n.) Look up constellation at Dictionary.com
early 14c., from Old French constellacion "constellation, conjuncture (of planets)," from Late Latin constellationem (nominative constellatio) "set with stars," from constellatus, from Latin com- "with" (see com-) + past participle of stellare "to shine," from stella "star" (see star). Originally in astrology, of position of planets ("stars") in regard to one another on a given day, usually one's birth day, as a determination of one's character. "I folwed ay myn inclinacioun/By vertu of my constillacioun" (Chaucer, "Wife's Prologue," c.1386). Modern astronomical sense is from 1550s.
consternate (v.) Look up consternate at Dictionary.com
1650s, from Latin consternatus, past participle of consternare (see consternation).
consternation (n.) Look up consternation at Dictionary.com
1610s, from French consternation "dismay, confusion," from Latin consternationem (nominative consternatio) "confusion, dismay," from consternat-, past participle stem of consternare "overcome, confuse, dismay, perplex, terrify, alarm," probably related to consternere "throw down, prostrate," from com-, intensive prefix (see com-), + sternere "to spread out" (see stratum).
constipate (v.) Look up constipate at Dictionary.com
1530s, in part a back-formation from constipation, in part from Latin constipatus, past participle of constipare (see constipation). Earlier as an adjective (early 15c.); an earlier verb in this sense was constipen (late 14c.). Related: Constipated; constipating.
constipation (n.) Look up constipation at Dictionary.com
c.1400, "constriction of tissue," from Late Latin constipationem (nominative constipatio), noun of state from Latin constipare "to press or crowd together," from com- "together" (see com-) + stipare "to cram, pack" (see stiff (adj.)). Specifically of the bowel condition since 1540s.
constituency (n.) Look up constituency at Dictionary.com
"body of constituents," 1806, from constituent + -cy.
constituent (n.) Look up constituent at Dictionary.com
1620s, "one who appoints or elects a representative," from Latin constituentem (nominative constituens), present participle of constituere (see constitute). The notion is "to make up or compose" a body by appointing or electing a representative. As an adjective, "essential, characteristic," from 1660s; "that appoints or elects a representative to a body," from 1714.
constitute (v.) Look up constitute at Dictionary.com
mid-15c., verb use of adjective constitute, "made up, formed" (late 14c.), from Latin constitutus "arranged, settled," past participle adjective from constituere "to cause to stand, set up, fix, place, establish, set in order; form something new; resolve," of persons, "to appoint to an office," from com-, intensive prefix (see com-), + statuere "to set," from PIE root *sta- "to stand," with derivatives meaning "place or thing that is standing" (see stet). Related: Constituted; constituting.
constitution (n.) Look up constitution at Dictionary.com
mid-14c., "law, regulation, edict," from Old French constitucion (12c.) "constitution, establishment," and directly from Latin constitutionem (nominative constitutio) "act of settling, settled condition, anything arranged or settled upon, regulation, order, ordinance," from constitut-, past participle stem of constituere (see constitute).

Meaning "action of establishing" is from 1580s; that of "way in which a thing is constituted" is from c.1600; that of "physical health, strength and vigor of the body" is from 1550s; of the mind, "temperament, character" from 1580s. Sense of "mode of organization of a state" is from c.1600; that of "system of principles by which a community is governed" dates from 1730s; especially of a document of written laws since the U.S. and French constitutions, late 18c.
constitutional (adj.) Look up constitutional at Dictionary.com
1680s, "pertaining to a person's (physical or mental) constitution," from constitution + -al (1). Meaning "beneficial to bodily constitution" is from 1750. Meaning "authorized or allowed by the political constitution" is from 1765. Constitutional monarchy is recorded from 1801, from French. Related: Constitutionally.
constitutional (n.) Look up constitutional at Dictionary.com
"a constitutional walk," 1829, probably originally among university students, from constitutional (adj.) in the "beneficial to bodily health" sense.
constitutionalism (n.) Look up constitutionalism at Dictionary.com
1832, "constitutional system of government;" occasionally also "constitutionality;" from constitutional (adj.) + -ism.
constitutionality (n.) Look up constitutionality at Dictionary.com
1787, "quality of being in accord with a constitution," from constitutional (adj.) + -ity.
constitutive (adj.) Look up constitutive at Dictionary.com
c.1600, "having the power of establishing," also "elemental, essential," from Medieval Latin *constitutivus, from constitut-, past participle stem of constituere (see constitute). Related: Constitutively.
constrain (v.) Look up constrain at Dictionary.com
early 14c., constreyen, from stem of Old French constreindre (Modern French contraindre) "restrain, control," from Latin constringere "to bind together, tie tightly, fetter, shackle, chain," from com- "together" (see com-) + stringere "to draw tight" (see strain (v.)). Related: Constrained; constraining.
constraint (n.) Look up constraint at Dictionary.com
late 14c., "distress, oppression," from Old French constreinte "binding, constraint, compulsion" (Modern French contrainte), fem. noun from constreint, past participle of constreindre, from Vulgar Latin *constrinctus, from Latin constrictus (see constrain). Meaning "coercion, compulsion" is from 1530s.
constrict (v.) Look up constrict at Dictionary.com
early 15c., from Latin constrictus, past participle of constringere "compress" (see constrain). A direct borrowing from Latin of the same word which, via French, became constrain. Related: Constricted; constricting.
constriction (n.) Look up constriction at Dictionary.com
c.1400, from Latin constrictionem (nominative constrictio), noun of action from past participle stem of constringere "compress" (see constrain).
constrictive (adj.) Look up constrictive at Dictionary.com
c.1400, from Late Latin constrictivus, from Latin constrictus (see constrict).
constrictor (n.) Look up constrictor at Dictionary.com
1735, agent noun in Latin form from constrict.
construct (v.) Look up construct at Dictionary.com
early 15c., from Latin constructus, past participle of construere "to heap up" (see construction). Related: Constructed; constructing.
construct (n.) Look up construct at Dictionary.com
1871 in linguistics, 1890 in psychology, 1933 in the general sense of "anything constructed;" from construct (v.).
construction (n.) Look up construction at Dictionary.com
late 14c., from Old French construction or directly from Latin constructionem (nominative constructio), from construct-, past participle stem of construere "pile up together, accumulate; build, make, erect," from com- "together" (see com-) + struere "to pile up" (see structure (n.)).
constructionist (n.) Look up constructionist at Dictionary.com
1844, in reference to the U.S. Constitution, from construction + -ist. Usually with strict or loose.
constructive (adj.) Look up constructive at Dictionary.com
early 15c., "derived by interpretation," from Middle French constructif or from Medieval Latin constructivus, from Latin construct-, past participle stem of construere "to heap up" (see construction). Meaning "pertaining to construction" is from 1817; "having the quality of constructing" is from 1841. Related: Constructively. Constructive criticism is attested by 1841.
constructivism (n.) Look up constructivism at Dictionary.com
1924, in reference to an abstract artistic movement begun in Russia c.1920, from Russian konstruktivizm. Related: Constructivist (1928).
construe (v.) Look up construe at Dictionary.com
late 14c., from Late Latin construere "to relate grammatically," in classical Latin "to build up, pile together" (see construction); also see construct (v.), which is a later acquisition of the same word. Related: Construed; construing; construal.
consubstantial (adj.) Look up consubstantial at Dictionary.com
late 15c., a term in the theology of the trinity, from Church Latin consubstantialis, from com- "with" (see com-) + substantia (see substance). In general use from 1570s. Related: Consubstantiality.
consubstantiation (n.) Look up consubstantiation at Dictionary.com
1590s, from Church Latin consubstantionem (nominative consubstantio), noun of action from past participle stem of consubstantiare, from com- "with" (see com-) + substantia (see substance). Related: Consubstantiate.
consuetude (n.) Look up consuetude at Dictionary.com
late 14c., from Middle French consuetude, from Latin consuetudo, from consuetus, past participle of consuescere "to accustom" (see custom).
consul (n.) Look up consul at Dictionary.com
late 14c., "magistrate in ancient Rome," from Old French consule and directly from Latin consul "magistrate in ancient Rome," probably originally "one who consults the Senate," from consulere "to deliberate, take counsel" (see consultation).

Modern sense began with use as appellation of various foreign officials and magistrates, "a representative chosen by a community of merchants living in a foreign country; an agent appointed by a government or ruler to represent the interests of its subjects and traders in a foreign place" (c.1600), an extended sense that developed 13c. in the Spanish form of the word.
consular (adj.) Look up consular at Dictionary.com
early 15c., from Latin consularis, from consul (see consul).
consulate (n.) Look up consulate at Dictionary.com
late 14c., "government of Rome by the consuls," from Latin consulatus "office of a consul," from consul (see consul). Also used in reference to the consular government of France from 1799-1804. In reference to the office of a modern consul, from 1702.
consult (v.) Look up consult at Dictionary.com
1520s, from Middle French consulter (16c.), from Latin consultare "consult, take the advice of," frequentative of consulere "to take counsel, meet and consider" (see consultation). Related: Consulted; consulting.
consultant (n.) Look up consultant at Dictionary.com
1690s, of persons going to oracles, from consult + -ant. Of physicians, from 1878; meaning "one qualified to give professional advice" is first attested 1893 in a Sherlock Holmes story. Related: Consultancy (1955).
consultation (n.) Look up consultation at Dictionary.com
early 15c., from Middle French consultation, from Latin consultationem (nominative consultatio), from past participle stem of consultare "consult, ask counsel of; reflect, consider maturely," frequentative of consulere "to deliberate, consider," originally probably "to call together," as in consulere senatum "to gather the senate" (to ask for advice), from com- "with" (see com-) + *selere "take, gather (the Senate) together," from PIE root *sal- "to take, seize."
consultative (adj.) Look up consultative at Dictionary.com
1580s, from Medieval Latin *consultativus, from consultat-, past participle stem of consultare (see consultation).
consumable (adj.) Look up consumable at Dictionary.com
1640s, from consume + -able.
consumables (n.) Look up consumables at Dictionary.com
"articles of consumption," 1802, from consumable.
consume (v.) Look up consume at Dictionary.com
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.) Look up consumer at Dictionary.com
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.) Look up consumerism at Dictionary.com
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.) Look up consummate at Dictionary.com
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.) Look up consummate at Dictionary.com
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.) Look up consummated at Dictionary.com
1640s, "perfected," past participle adjective from consummate (v.). Of marriage, from 1709; earlier consummate (adj.) was used in this sense (1530s).
consummation (n.) Look up consummation at Dictionary.com
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.) Look up consumption at Dictionary.com
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.) Look up consumptive at Dictionary.com
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.