DEM comes from Greek word "demos "common people "(人民) , from PIE *da-mo-, from root *da "to divide" 详细可以查询AHD.
DEM相关词汇:
democracy [də'mɑkrəsi] n. 民主，民主主义；民主政治
☉ CET6 TEM4 IELTS GRE TOEFL 考 研
☉拆: dem(people)+o+cracy(power/rule) -> 人民的统治 -> 民主
☉词源
democracy (n.)
1570s, from middle french démocratie (14c.), from medieval latin democratia (13c.), from greek demokratia "popular government," from demos "common people," originally "district" (see demotic), + kratos "rule, strength" (see -cracy).
democrat ['dɛməkræt] n. 民主党人；民主主义者；民主政体论者
☉ CET6 TEM4
☉拆: dem(people)+o+crat(supporter) -> 人民的支持者 -> 民主主义; 民主主义者
☉拓展:
democratic ['dɛmə'krætɪk] adj. 民主的；民主政治的；大众的
democratize [dɪ'mɑkrətaɪz] vt. 使民主化；使大众化 vi. 民主化；大众化
☉词源
democrat (n.)
1790, "adherent of democracy," with reference to france, from french démocrate (18c., opposed to aristocrate), back-formation from démocratie (see democracy);
demos ['dimɑs] n. 民众；人民；游行；录音样带（demo的复数形式）
☉拆: demos -> the people -> 民众; 大众
demotic [dɪ'mɑtɪk] adj. 通俗的，民众的
☉ GRE
☉拆: demo(people)+tic(adj后缀) -> 民众的
☉词源
demotic (adj.)
1822, from greek demotikos "of or for the common people, in common use," from demos "common people," originally "district," from pie *da-mo- "division," from root *da- "to divide" (see tide)
demagogue [ˈdɛməɡɑɡ] n. 煽动者；煽动家；煽动政治家
☉ GRE TEM8
☉拆: dem(people)+agogue(leader) -> leader of the people -> 民众的领袖 -> 蛊惑民心的政客
☉词源
demagogue (n.)
1640s, from greek demagogos "popular leader," also "leader of the mob," from demos "people" (see demotic) + agogos "leader," from agein "to lead" (see act (n.)).
demagogic [,demə'ɡɒɡɪk] adj. 蛊惑人心的；煽动性的
☉拆: dem(people)+agog(ue)+ic(adj后缀) -> 蛊惑的; 煽动的
☉拓展:
demagogy ['dɛmə,godʒi] n. 煽动家的方法与行为 TEM8
☉词源
demagogic (adj.)
1831; see demagogue + -ic. greek had demagogikos "fit for or like a demagogue."
demography [dɪ'mɑɡrəfi] n. 人口统计学
☉ TEM8 IELTS GRE
☉拆: demo(people)+graphy(writing/recording) -> 对人口的记录(the recording of the people) -> 人口统计学
☉拓展:
demographic [ˌdeməˈɡræfɪk] adj. 人口结构的；人口统计的 n. 特定年龄段的人口；(demographics) 人口统计数据，人口统计资料
demographer [dɪˈmɑːɡrəfər] n. [统计] 人口统计学家，人口学家
☉词源
demography (n.)
1880, from greek demos "people" (see demotic) + -graphy.
epidemic [,ɛpɪ'dɛmɪk] adj. 流行的；传染性的 n. 传染病；流行病；风尚等的流行
☉ CET6 TEM4 IELTS GRE TOEFL 考 研
☉拆: epi(upon 在...之上)+dem(people)+ic(adj) -> being or falling upon the people at a time(指一时在人民之间上方存在着的) -> 流行的; 传染性的
☉词源
epidemic (adj.)
c. 1600, originally and usually, though not etymologically, in reference to diseases, from french épidémique, from épidemié "an epidemic disease," from medieval latin epidemia, from greek epidemia "a stay in a place; prevalence of an epidemic disease", from epi "among, upon" (see epi-) + demos "people, district"
endemic [ɛn'dɛmɪk] adj. 地方性的；风土的 n. 地方病
☉ TEM8 GRE
☉拆: en(in)+dem(people)+ic(adj) -> be in the people of a certain area 在某个区域民众中的 -> 地方性的
☉拓展:
endemicity [,endi'misəti] n. 风土性；地方的特性
☉词源
endemic (adj.)
"particular to a people or locality," 1650s (endemical), with -ic + greek endemos "native, dwelling in (a place), of or belonging to a people," from en "in" (see en- (2)) + demos "people, district" (see demotic). from 1660s as a noun.
pandemic [pæn'dɛmɪk] adj. （疾病等）全国流行的；普遍的 n. 流行性疾病
☉ GRE
☉拆: pan(whole)+dem(people)+ic(adj) -> 涉及全民的 -> 流行全国的
☉词源
pandemic (adj.)
1660s, from late latin pandemus, from greek pandemos "pertaining to all people; public, common," from pan- "all" (see pan-) + demos "people" (see demotic). modeled on epidemic. the noun is first recorded 1853, from the adjective.
If you are obessed by what other people think, then you will be imprisoned by their thoughts.
如果他人的看法会让你烦恼，那你就是他人思想的囚徒.
／End.