词根：cast, cest, chast = pure（纯洁）

  词根cast来自拉丁语的cast 意为pure。cest,chast是它的变形，同义词根有来自希腊语的cath。

同源词：

1. chaste adj.（想法、言行等）正派的，高尚的；守贞节的；（文风等）简洁朴实的；纯洁的 *chast<cast(=pure)

2. caste n.印度的世袭阶级；(排他的)社会团体；种姓；等级制度

3. castigate [使拉走得干干净净cast(=pure) + ig(=drive)]
  vt.严惩；严厉批评；责打
  castigation n. 惩罚；责打
  The sergeant castigated the private for not shining his shoes.因为没有擦鞋子，中土严厉地批评了卫兵。

4. chastity n.正派，高尚；纯洁；简洁 *chast<cast(=pure)
  chastity belt 贞节带

5. chasten v.通过惩罚使（犯错误的人）改正（或变得更好）；磨炼（人）；使缓和，遏制；使（文章等）简洁朴实 *chast<cast(=pure)

6. chastise v.惩罚；责骂 *chast<cast(=pure)

7. incest n.乱伦 *in(=not),*chast<cast(=pure)
  incestuous 乱伦的

词根词缀：clari-, clar-,

【来源及含义】Latin: clear, bright, shining, glorious

【同源单词】Clara, claret, clarification, clarifier, clarify, clarinet

词根词缀：lucifer, luci-

【来源及含义】Latin: light-bearing, light producing, emitting light

【相关词根词缀】A list of related "light, shining, glow" units: luco-; lumen-, lum-; luna, luni-, lustr-, phengo-, pheno-, phospho-, photo-; scinti-, scintill-.

【同源单词】Lucifer, luciferase, luciferin, luciferous, Luciferphobia, lucific

词根词缀：luco-, luc-, luci-, lux, -lucence, -lucent

【来源及含义】Latin: light, lights, shine, shines, shining

【相关词根词缀】 Etymologically related "light, shine, glow" word families: ethero-; fulg-; lumen-, lum-; luna, luni-; lustr-; phengo-; pheno-; phospho-; photo-; scinti-, scintill-; splendo-.

【同源单词】Alenda lux ubi orta libertas, Anno lucis, antelucan, antelucidate, circumlucid, elucid

词根词缀：splendo-, splend-

【来源及含义】Latin: to shine, shining; to gleam, to glisten; illustrious; bright; brilliant, brilliance; magnificent, sumptuous

【相关词根词缀】 Etymologically related "light, shine, glow" word families: ethero-; fulg-; luco-; lumen-, lum-; luna, luni-; lustr-; phengo-; pheno-; phospho-; photo-; scinti-, scintill-.

【同源单词】brilliance, brilliancy, brilliant, Fortuna vitrea est, Non teneas aurum totum quod splendet ut aurum, resplendence