词根：greg = flock, gather, mob 群 / 聚结

  词根拉丁语gregare(=to collect),grex(=flock 群）。有同类词根：-cumul- 堆积，来源于拉丁语 cumulus，如：accumulate 堆积起来、cumulative 累计；它相应的希腊语词根为：-soro- 堆积，如：soroche 高山病、sororiation 乳房增大。

同源词：

1. egregious（脱离人群的 e<ex(=out) + greg(=flock,mob)）
  adj.极坏的；异乎寻常的
  egregiously adv.极坏地
  The bassoon soloist made several egregious mistakes at the recital. 那个低音管独奏会上出现了几次极大的失误。

2. gregarious（因成群而充满的greg(=flock,mob)）
  adj.群居的，集体的；合群的；爱社会的
  I tend to be lost in the shadow of my gregarious friend. 同我善于社交的朋友在一起，我会不知所措。

3. segregate（使脱离于群 se(=away) + greg(=flock,mob)）
  vt. 分离，隔离；实行种族隔离
  segregation n.分离，隔离；种族隔离
  segregationist n.各族隔离主义者
  You need to segregate the bitch from the other dogs when she's in heat. 当母狗发情时，你需要把它和其他的狗隔离开来。

4. aggregate
  v.聚集，集合；总计达 n.合计，总数，总额；（混凝土的）骨料
  adj.总计的，合计的 *ag<ad(=to,near)
  aggregation n.集合体，集成体
  The money collected aggregated $1,000. 筹集的奖金总计1000美元。
  in the aggregate 总计
  aggregate demand 总需求

5. congregate
  v.（使）集合 *con<com(=together)
  People quickly congregated around the speaker. 人们很快就聚集到了演说者周围。

6. congregation
  n.会集，集合；（教堂的）会众（通常牧师、对歌队除外）；（宗教的）集会 *con<com(=together)

7. congregational
  adj.（教堂）会众的；集合的；（C~)（基督教）公理会的 *con<com(=together)

8. desegregate
  v.废除种族隔离 *de(=reverse the action of),se(=away)
  desegregation n.废除种族隔离
  desegregate schools Alabama 亚拉巴马州取消种族隔离的学校。

词根词缀：greg-, -gregate, -gregation

【来源及含义】Latin: flock; assemble; gather; come together, get together

【相关词根词缀】 Related "together" units: com-; inter-; struct-.

【同源单词】aggregate, aggregate, aggregate, aggregation, congregant, congregate

词根词缀：nom-, nomo-

【来源及含义】Greek: a meadow; a pasture; an abode; a place for eating; by extension, "distribution of an acute, necrotizing ulcerative process involving mucous membranes of the mouth or genitalia"

【相关描述】Don’t confuse this element with the Greek nomo- which means "law" or another Latin nom- meaning "name".

This element is closely related to nomad- which means “wander, moving around for pasture or grazing for herds or flocks”.

【同源单词】noma, nomocole, nomophile, nomophilous, pronomos

词根词缀：nomad-

【来源及含义】Greek, nomas, nomados, "pasturing, roaming about for pasture" > Latin , nomas, nomdis: wander, moving around for pasture or grazing for herds or flocks

【相关描述】Closely related to nomo-, "a pasture" or "a place for grazing".

【同源单词】nomad, nomadic, nomadical, nomadically, nomadism, nomadize