词根：lat = to carry（带来）, to bear（搬运, 担负）
在常用的translate,relate,superlative和legislate中，词根lat 来自拉丁动名词latum 意为to carry ,to bear,与fer来源相同。其实，lat正是不规则拉丁动词ferre的动名词词干。由于lat的形态与fer想去甚远，又有相当强的孳
生能力，所以词根lat是比较常用的。同义词根有来自拉丁语的ger/gest,port,veh/vect 和来自希腊语的phor/pher。
同源词：
1. collate（一起搬运col<com(=together) + lat (= carry)）
vt.对照
collation n.对照
After collating the data sets,the scientist realized the experimental medicine was ineffective. 对照了数据之后，科学家得知那种实验药物不起作用。
2. dilate（分别、远远地搬运 di<dis(=apart,away) + lat(=carry)）
vt.使膨胀，使扩大 vi.使扩大，膨胀；详述，细说
dilation n.膨胀，扩大；详述
The ophthalmologist dilated my pupils for the eye exam. 为了检查视力，眼科医生为我做了散瞳。
3. elated（向外、向上搬运的 e<ex(=out,up) + lat(=carry)）
adj.喜气洋洋的，兴高采烈的
elation n.喜气洋洋
elate v.使兴奋，使兴高采烈
I was elated to learn i'd been accepted at the university of my choice. 得知我被报考的大学录取之后，我十分高兴。
4. latent（抱着的lat(=carry,bear)）
adj.隐藏的，隐匿的；潜在的，潜伏的
latency n.潜在，潜伏
Freud said infants may harbor latent hostility for their mothers when they stop nursing. 弗罗德曾说过，幼儿断奶后会对他们的母亲怀有一种潜在的敌意。
5. dilatory
adj.缓慢的；拖延的 *di(=apart,away)
The filibuster is an effective tool in dilatory campaingns. 以冗长的演说（在议会中）阻碍议事是一种有效的拖延手段。
6. oblate
adj.扁圆的 *ob(=to, toward)
The earth is an oblate sphere. 地球是一个扁圆形的球体。
7. oblation
n.向神供奉；奉献物 *ob(=to,toward)
8. prelate
n.高级教士（如 archbishop,bishop,metropolitan,patriarch） *pre(=before)
9. relate
v.叙述，讲；使联系；有关 *re(=again)
I am not related to him in any way. 我和他没有任何关系。
10. relation
n.陈述，叙述；关系，关联；(pl.)（人、团体、国家等的）关系；联系；交往 *re(=again)
diplomatic relations 外交关系
public relations 公共关系
public relations officer 公共关系人员（缩写：PRO）
11. relationship
n.关系；联系；浪漫关系；血缘关系；感情关系 *re(=again)
His affair with Susan has developed into a lasting relationship. 他和苏珊的恋情已经发展为持久的感情关系。
degree of relationship 亲等
12. relative
adj.比较的，相对的；(~to) 和...有关系的
n.[语]关系词；亲戚 *re(=again)
relatively adv.比较地，相对地
relativity n.（爱因斯坦的）相对论
in relative comfort 相对合适地
papers relative to the case 和案件相关的文件
13. correlate
v.关联；使相互关联 *cor<com(=together),re(=again)
Her research correlates with his. 她的研究和他有一定的关联。
correlate psychology with political sceience 把心理学和政治学联系起来
14. correlation
n.相互关系；相关性 *cor<com(=together),re(=again)
correlation between climate and vegetation 气候和植被间的相互关系
15. correlative
adj.相互关联的，相关的 n.[语]关联词 *cor<com(=together),re(=again)
correlative words 关联词
correlative conjunction 关联连词
16. interrelate
v.（使）相互联系 *inter(=between) ,re(=again)
interrelated studies 相关的科学（如政治学、哲学、经济学等）
17. interrelation
n.相互关系 *inter (=between),re(=again)
interrelationship n.相互关系
18. superlative
adj.最高的，最好的，最佳的；[语]最高级的
n.最好的人（或物）；顶峰；[语]最高级 *super(=above)
superlative degree 最高级
speak in superlatives 说话夸张
The subject of all these superlatives was plain old Miller. 受到最高赞誉的人是平凡的老米勒。
19. translate
v.翻译；解释；调动；（圣经中）肉体不死而升天 *trans (=change,through)
translatable adj.可译的
translator n.翻译者
20. translation
n.翻译；解释 *trans (=change,through)
errors in translation 翻译错误
literal/close translation 直译
read Milton in translation 阅读米尔顿作品的译本
21.制定法律 *leg(=law)
legislation n.立法，法律的制定；法律
legislator n.立法者，国会议员
legislature n.立法机关；<美>州议会
legislate against gambling 制定禁赌法案
22. latitude
n.纬度（<-->longitude 经度）；(pl.)地区，地带；（活动、见解、思想等的）范围，自由；（胶片）曝光宽容度，曝光时限 *lat(=carry,wide)
latitudinal adj.纬度的
north/south latitude 北纬/南纬
high/low latitudes 高/低纬度地区
cold /warm latitude 寒带地区
Does the South Korean government allow much latitude in political belief ? 韩国政府在政治信仰方面给予国民很大的自由度吗？
23. latitudinarian
adj./n. （特指在宗教信仰、教理方面）不拘泥于教条的（人），宽容的（人） *lat (=carry,wide)
24. ablation
n.除去；切除（搬走）《ab- = away》.
25. illation
n.推论；结论（被带到内部的东西）《il- = in- = in》
26. ventilate
v.使通风；以空气净化；自由讨论（把风带进来）《venti =wind》
ventilation n.通风；通风设备；自由讨论
27. delay
v.延期；延缓 n.耽搁 （运往远处）《de- = dis- = apart》
词根词缀：-ac
【来源及含义】Greek > Latin: suffix; from French -aque, or directly from Latin -acus, from Greek -akos forming adjectives. This suffix was used to form names of arts and sciences in Greek and it is now generally used to form new names of sciences in English; meanings, "related to, of the nature of, pertaining to, referring to"
【相关描述】The suffix -ic has related elements.
【同源单词】ambrosiac, ammoniac, amnesiac, anaphrodisiac, anthomaniac, antidemoniac
词根词缀：acerb-, acerbo-; acri-, acrid-
【来源及含义】Latin: bitter, sharp, sour, stinging
【相关描述】Formed from a blend of Latin acer- (feminine acris, neuter acre) which are both related to Latin acus, "needle"; acies, "sharp edge, point, the front of an army, line of battle, battle array"; and acuere, "to sharpen".
【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "sour, sharp": aceto-; acid-; acies- (not "sour"); acuto- (not "sour"); oxy-; pung- (not "sour").
【同源单词】acerbate, acerbic, acerbity, acerbophobia, acerophobia, acerose
词根词缀：acetyl-
【来源及含义】Latin: derived from aceto- plus the suffix -yl; used in naming chemical radicals
【相关描述】Derived from or containing acetic acid in chemical nomenclature.
The words in this unit are directly related to the aceto- unit.
【同源单词】acetyl group, acetylase, acetylation, acetylcholine, acetylcysteine, acetyldigitoxin
词根词缀：alcoholo-, alcohol-, alcoho-
【来源及含义】Arabic > Latin: alcohol, originally an "essence or very fine powder"
【相关描述】A finely pulverized antimony ore or metallic powder used for painting the eyelids that is related to Hebrew kahal.
The term comes from Arabic al-kuhl which is from al-, "the" and kohl or kuhl, "antimony sulfide".
【同源单词】alcholimetric, alcholizer, alcholometrical, alcogel, alcohol, alcohol
词根词缀：ami-, amic-
【来源及含义】Latin: friend, friendly; loveable; goodwill, cordial; peaceful relations
【相关描述】The words in this "friend" unit are directly related to the "love" or the amo- unit.
【同源单词】amiability, amiable, amiably, amicability, amicable, amicably
词根词缀：-aria
【来源及含义】Latin: a suffix; related to or connected with
【同源单词】liparia, luminaria, militaria, rhyparia, solaria, talaria
词根词缀：arid-
【来源及含义】Latin: to be dry; lacking enough water for things to grow, dry and barren; by extension, not interesting, lifeless, dull
【相关词根词缀】Cross reference of another word family related to: "dry": xer-, xero-.
【同源单词】areal, arid, arid-agriculture, aridity, aridly, aridness
词根词缀：-arium (s), -aria (pl)
【来源及含义】Greek > Latin: a suffix; a place for; abounding in or connected with something; a place containing or related to that which is specified by the root
【同源单词】aquarium, armamentarium, aspidarium, caldarium, cinerarium, clavicular notch
词根词缀：augur-
【来源及含义】Latin: diviner, soothsayer; a member of the college of priests in Rome, who foretold the future; in ancient Rome, a priest who foretold events by interpreting omens
【相关描述】Related to augerer, "to increase".
【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "divination, diviner; seer, soothsayer, prophecy, prophesy, prophet": auspic-; fa-, fate; Fates in action; futur-; -mancy; omen; -phemia; sorc-, sorcery; vati-.