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cement: cement: [13] Latin caementa meant ‘stone chips used for making mortar’; etymologically, the notion behind it was of ‘hewing for a quarry’, for it was originally *caedmenta, a derivative of caedere ‘cut’ (from which English gets concise and decide). In due course the signification of the Latin word passed from ‘small broken stones’ to ‘powdered stone (used for mortar)’, and it was in this sense that it passed via Old French ciment into English.
=> concise, decide
cemetery: cemetery: [14] Not surprisingly for a word having associations with death, cemetery’s origins are euphemistic. It comes via late Latin coemētērium from Greek koimētérion, which originally meant ‘dormitory’ (it was a derivative of the verb koiman ‘put to sleep’); it was apparently early Greek Christian writers who first applied the word to burial grounds.
December: December: [13] December was originally so named by the ancient Romans (Latin December) because it was the tenth month of their calendar (which began with March). The term was derived from Latin decem ‘ten’. It reached English via Old French decembre.
=> decimal, ten
piecemeal: piecemeal: see meal
raceme: raceme: see raisin
advancement (n.): c. 1300, avauncement, "a raising to a higher rank," from Old French avancement "advancement, profit, advance payment," from avancer (see advance (v.)). Of money, from 1640s.
announcement (n.): 1798, from French announcement, from Old French anoncier (see announce). Or else formed in English from announce + -ment. Earlier in same sense was announcing.
cement (n.): c. 1300, from Old French ciment "cement, mortar, pitch," from Latin cæmenta "stone chips used for making mortar" (singular caementum), from caedere "to cut down, chop, beat, hew, fell, slay" (see -cide). The sense evolution from "small broken stones" to "powdered stones used in construction" took place before the word reached English.
cement (v.): c. 1400, from cement (n.) or Old French cimenter. Figurative use from c. 1600. Related: Cemented; cementing.
cementation (n.): 1590s, from cement + -ation.
cemetery (n.): late 14c., from Old French cimetiere "graveyard" (12c.), from Late Latin coemeterium, from Greek koimeterion "sleeping place, dormitory," from koiman "to put to sleep," keimai "I lie down," from PIE root *kei- "to lie, rest," also "bed, couch," hence secondary sense of "beloved, dear" (cognates: Greek keisthai "to lie, lie asleep," Old Church Slavonic semija "family, domestic servants," Lithuanian šeima "domestic servants," Lettish sieva "wife," Old English hiwan "members of a household," higid "measure of land," Latin cunae "a cradle," Sanskrit Sivah "propitious, gracious"). Early Christian writers were the first to use it for "burial ground," though the Greek word also had been anciently used in reference to the sleep of death. An Old English word for "cemetery" was licburg.
commencement (n.): late 13c., "beginning," from Old French comencement "beginning, start" (Modern French commencement), from comencier (see commence). Meaning "school graduation ceremony" attested by 1850, American English. (Sense "entrance upon the privileges of a master or doctor in a university" is from late 14c.)
I know what you are thinking of -- the class members grouped in a semicircle on the stage, the three scared boys in new ready-made black suits, the seventeen pretty girls in fluffy white dresses (the gowns of the year), each senior holding a ribbon-tied manuscript bulging with thoughts on "Beyond the Alps Lies Italy," "Our Ship is Launched -- Whither Shall it Sail?" and similar topics. [Charles Moreau Harger, "The Real Commencement," "New Outlook," May 8, 1909]
December (n.): c. 1000, from Old French decembre, from Latin December, from decem "ten" (see ten); tenth month of the old Roman calendar, which began with March.

The -ber in four Latin month names is probably from -bris, an adjectival suffix. Tucker thinks that the first five months were named for their positions in the agricultural cycle, and "after the gathering in of the crops, the months were merely numbered."
If the word contains an element related to mensis, we must assume a *decemo-membris (from *-mensris). October must then be by analogy from a false division Sep-tem-ber &c. Perhaps, however, from *de-cem(o)-mr-is, i.e. "forming the tenth part or division," from *mer- ..., while October = *octuo-mr-is. [T.G. Tucker, "Etymological Dictionary of Latin"]
defacement (n.): 1560s, from deface + -ment.
displacement (n.): 1610s, "removal from office;" see displace + -ment. Physics sense is from c. 1810.
effacement (n.): 1743, from French effacement; see efface + -ment.
emplacement (n.): 1742, from French emplacement "place, situation," from verb emplacer, from assimilated form of en- "in" (see en- (1)) + placer "to place" (see place (v.)). Gunnery sense attested from 1811.
enforcement (n.): late 15c., "constraint, compulsion," from Old French enforcement "strengthening, fortification; rape; compulsion, coercion;" from enforcier; see enforce + -ment. Meaning "compelling of obedience to a law, etc." is from 1680s.
enhancement (n.): 1570s, from enhance + -ment.
enticement (n.): c. 1300, "thing which entices," from Old French enticement "incitement, instigation, suggestion," from enticier (see entice). From 1540s as "action of enticing."
forcemeat (n.): also force-meat, "mincemeat, meat chopped fine and seasoned," 1680s, from force "to stuff," a variant of farce (q.v.) + meat.
glycemia (n.): also glycaemia, "presence or level of sugar in the blood," 1901, from glyco- "sugar" + -emia "condition of the blood."
glycemic (adj.): 1923, from glycemia + -ic.
hyperglycemia (n.): 1875, from hyper- "over" + glycemia "presence of sugar in the blood."
hypoglycemia (n.): 1893, from Latinized form of Greek elements hypo- "under" (see hypo-) + glykys "sweet" (see glucose) + haima "blood" (see -emia).
iceman (n.): 1844, from ice (n.) + man (n.).
inducement (n.): 1590s, "that which induces," from induce + -ment.
mincemeat (n.): 1660s, originally in the figurative sense of what someone plans to make of his enemy, an alteration of earlier minced meat (1570s); from mince (v.) + meat (n.). Mince-pie is attested from c. 1600; as rhyming slang for "eye" it is attested from 1857.
pacemaker (n.): also pace-maker, 1884, originally a rider or boat that sets the pace for others in training. Meaning "the node of the heart which determines the beat rate" is from 1910; sense of "man-made device for stimulating and regulating heartbeat" is from 1951. From pace (n.) + maker.
peacemaker (n.): early 15c., from peace + maker.
piecemeal (adv.): c. 1300 (originally two words), from piece (n.) + Old English mælum "at a time," dative plural of mæl "appointed time, food served" (see meal (n.1)). The second element once was more commonly used, as in Old English styccemælum "bit by bit," gearmælum "year by year." One-word form from 15c.
placement (n.): 1835, from place (v.) + -ment.
policeman (n.): 1790, from police (n.) + man (n.).
pronouncement (n.): 1590s, from pronounce + -ment.
raceme (n.): type of flower cluster, 1785, from Latin racemus "a cluster of grapes" (see raisin). Related: Racemic; racemism.
re-enforcement (n.): c. 1600, from re- + enforcement.
reinforcement (n.): c. 1600, "act of reinforcing," from reinforce + -ment. Meaning "an augmentation, that which reinforces" is from 1650s. Related: Reinforcements.
replacement (n.): "act or fact of being replaced," 1790, from replace (v.) + -ment. Meaning "something that replaces another" is attested from 1894.
septicemia (n.): 1857, Modern Latin septicæmia, from French septicoemi, coined irregularly by French physician Pierre-Adolphe Piorry (1794-1879) in 1837 from Greek septikos (see septic) + haima "blood" (see -emia).
Dr. Piorry, in a second communication, insists upon the fact, that in a great number of cases the decaying contents of the uterus, and the putrid infection of the blood from this source, constitute the so-called puerperal fever, and he thinks that the discussion in the Academy is only a fight about words, as the different speakers agree, without knowing it themselves, upon the nature of the disease. He proposes the name of septicemia, as best designating the sources of the disease, viz., from putrid infection from the uterus, and by the respiration of an atmosphere pregnant with septic particles. ... The admission of this septicemia explains the putrid accidents, as observed in men, the foetus, and wounded persons during a puerperal epidemic. [E. Noeggerath and A. Jacobi, "Contributions to Midwifery," New York, 1859]
serviceman (n.): 1899, from service (n.) + man (n.).
spaceman (n.): 1942 in the astronaut sense, from space (n.) + man (n.). Earlier it meant "journalist paid by the length of his copy" (1892). Spacewoman recorded from 1960.
voicemail (n.): also (and originally) voice mail, by 1982; see voice (n.), mail (n.1).
racemization: "Conversion of an optically active substance into a racemic (and so optically inactive) form", Late 19th cent. From racem- + -ization. Compare French racémisation.
racemic acid: "A compound (originally obtained from the tartar in grape juice) consisting of equal proportions of the laevo- and dextrorotatory isomers of tartaric acid. Now chiefly historical", Mid 19th cent.; earliest use found in Records of General Science.
racemose: "(Of a flower cluster) taking the form of a raceme", Late 17th century: from Latin racemosus, from racemus (see raceme).
racemic: "Composed of dextrorotatory and laevorotatory forms of a compound in equal proportion", Early 19th century (in racemic acid): from French racémique 'derived from grape juice' (originally referring to tartaric acid in this) + -ic.