词根：est, ess, ent = to be（存在）
来自拉丁语的esse 意to be。
同源词：
1. disinterested（两人之间不存在什么的dis(=not) + inter(=between) + est(=to be)）
adj.无私的；公正的；不关心的
A trial judge is ,ideally,a disinterested party —— an advocate of neither side. 理想状态下，审判官应当是无私的，不支持双方中任何一方。
2. nonentity（不存在 non(=not) + ent(=to be)）
n.不存在的东西；无足轻重的人
He's nonentity in the Democratic Party .他在民主党内无足轻重。
3. uninterested
adj.没有兴趣的；不关心的 *un(=not) ,inter(=between)
4. uninteresting
adj.无趣的；引不起兴趣的
5. interest
n.关心；兴趣，趣味；权益；利息；(pl.)利益 v.引起... 的兴趣；引起...的注意 *inter(=between)
French interests in Algeria 法国在阿尔及利亚的权益
interest rate 利率
pay 6% interest on loan 付6%的贷款利息
annual interest 年利息
simple /compound interest 单利/复利
high/low interest 高利/低利
6. interested
adj.感兴趣的；有利害关系的；有私心的，有偏见的 *inter(=between)
interested look 感兴趣的表情
interested spectators 感兴趣的观众们
interested marriage 利益婚姻
interested motives 私心
7. interesting
adj.有趣的；引起兴趣的 *inter(=beween)
interesting men /books /conversation 有趣的人/书/谈话
8. intestine
n.(pl.)肠 *int(=within)
small/large intestine 小肠/大肠
intestinal disorders 肠疾
intestinal canal 肠道
intestinal worm 肠内寄生虫
intestinal fortitude 勇气，毅力
9. essence
n.本质，要素；精髓，（从某种物质中提取出来的）精华；香料
essence of democracy 民主主义的本质
in essence 本质上
meat essences 肉精
essence of peppermint 薄荷精
10. essential
adj.必要的，不可缺少的；最重要的；本质的，实质的；基本的；精华的 n.(pl.)本质；要素
essentially adv. 实质上，本来
Wanted,a good secretary:experience essential 招聘秘书：要求有经验
11. quintessence
n.精髓，精华；典型；第五元素（earth,air ,fire,water,aether五要素中的第五项，即aether） *quint(=five)
quintessence of virtue /politeness 美德的典范/讲礼貌的典范
12. entity
n.实体（与性质等相对），存在
词根词缀：aphidi-, aphid-, aphis
【来源及含义】Latin: a plant louse; a plant sucking insect
【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, with: "insects, bugs, worms; invertebrates": api-; ascari-; culci-; Dung Beetle Survival; Dung Beetles Important; Eating Worms; entomo-; formic-; Guinea worms; helmintho-; insecto-; Insects: Importance; isopter-; larvi-; lepidopter-; meliss-; mosquito; Mosquito, other Languages; Mosquitoes, Pt. 1; Mosquitoes, Pt. 2; myrmeco-; scarab; scoleco-; sphec-; taeni-; termit-; vermo-.
【同源单词】aphidian, aphidicide, aphidicole, Aphididae, aphidivorous, aphidophagous
词根词缀：api-
【来源及含义】Latin: bee
【相关描述】Kim Hubbard
E. Cole, An English Dictioinary, 1677
【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, with: "insects, bugs, worms; invertebrates": aphidi-; ascari-; culci-; Dung Beetle Survival; Dung Beetles Important; Eating Worms; entomo-; formic-; Guinea worms; helmintho-; insecto-; Insects: Importance; isopter-; larvi-; lepidopter-; meliss-; mosquito; Mosquito, other Languages; Mosquitoes, Pt. 1; Mosquitoes, Pt. 2; myrmeco-; scarab; scoleco-; sphec-; taeni-; termit-; vermo-.
【同源单词】Acarapis, apiaceous, apian, apiarian, apiarist, apiary
词根词缀：ascari-, ascarid-
【来源及含义】Greek: worm; maw-worm; intestinal worm
【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, with: "insects, bugs, worms; invertebrates": aphidi-; api-; culci-; Dung Beetle Survival; Dung Beetles Important; Eating Worms; entomo-; formic-; Guinea worms; helmintho-; insecto-; Insects: Importance; isopter-; larvi-; lepidopter-; meliss-; mosquito; Mosquito, other Languages; Mosquitoes, Pt. 1; Mosquitoes, Pt. 2; myrmeco-; scarab; scoleco-; sphec-; taeni-; termit-; vermo-.
【同源单词】ascariasis, ascaricide, ascarid, ascaridal, ascaridiasis, ascaridosis
词根词缀：bomba-, bomb-
【来源及含义】Greek > Latin: bambacium, "cotton fabric"; from bombax, "cotton"; from Latin, bombyx, "silk, silkworm"; from Greek, bombux, "silkworm"
【同源单词】bombast, bombaster, bombastic, bombastical, bombastically, bombasting
词根词缀：culci-, culici-, culc-
【来源及含义】Latin: gnat, mosquito
【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, with: "insects, bugs, worms; invertebrates": aphidi-; api-; ascari-; Dung Beetle Survival; Dung Beetles Important; Eating Worms; entomo-; formic-; Guinea worms; helmintho-; insecto-; Insects: Importance; isopter-; larvi-; lepidopter-; meliss-; mosquito; Mosquito, other Languages; Mosquitoes, Pt. 1; Mosquitoes, Pt. 2; myrmeco-; scarab; scoleco-; sphec-; taeni-; termit-; vermo-.
【同源单词】Culex, Culicidae, culicidal, culicide, culicifuge, Culicinae
词根词缀：entomo-, entom-
【来源及含义】Greek: insect, bug; literally, "cut up, cut in pieces"; an insect because it appears to be segmented
【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, with: "insects, bugs, worms; invertebrates": aphidi-; api-; ascari-; culci-; Dung Beetle Survival; Dung Beetles Important; Eating Worms; formic-; Guinea worms; helmintho-; insecto-; isopter-; larvi-; lepidopter-; meliss-; mosquito; Mosquito, other Languages; Mosquitoes, Pt. 1; Mosquitoes, Pt. 2; myrmeco-; scarab; scoleco-; sphec-; taeni-; termit-; vermo-.
【同源单词】dientomophilous, entognathous, entomochore, entomogamy, entomogenous, entomography
词根词缀：helmintho-, helminth-, helminthi-, -helminth
【来源及含义】Greek: worm, worms
【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, with: "insects, bugs, worms; invertebrates": aphidi-; api-; ascari-; culci-; Dung Beetle Survival; Dung Beetles Important; Eating Worms; entomo-; formic-; Guinea worms; insecto-; Insects: Importance; isopter-; larvi-; lepidopter-; meliss-; mosquito; Mosquito, other Languages; Mosquitoes, Pt. 1; Mosquitoes, Pt. 2; myrmeco-; scarab; scoleco-; sphec-; taeni-; termit-; vermo-.
【同源单词】antihelmintic, Helminth, Helminthic, helminthicide, helminthoid, helminthologist
词根词缀：insecto-, insect-, insecti-
【来源及含义】Latin: a bug; literally, "cut into," from insectum, with a notched or divided body; literally, "that which is cut up, segmented" [as the bodies of the first invertebrates to which the term was applied or appeared to be]
【相关词根词缀】 An entomological unit of words about insects.
A cross reference of other word family units that are related directly, or indirectly, with: "insects, bugs, worms; invertebrates":
aphidi-;
api-;
ascari-;
culci-;
Dung Beetle Survival;
Dung Beetles Important;
Eating Worms;
entomo-;
formic-;
Guinea worms;
helmintho-;
Insects: Importance;
isopter-;
larvi-;
lepidopter-;
meliss-;
mosquito;
Mosquito, other Languages;
Mosquitoes, Pt. 1;
Mosquitoes, Pt. 2;
myrmeco-;
scarab;
scoleco-;
sphec-;
taeni-;
termit-;
vermo-.
【同源单词】disinsectization, insect, Insect Biotechnology, Insecta, insectarian, insectarium
词根词缀：isopter-
【来源及含义】Greek: termites
【相关词根词缀】Another termite unit:
termit-.
A cross reference of other word family units that are related directly, or indirectly, with: "insects, bugs, worms; invertebrates":
aphidi-;
api-;
ascari-;
culci-;
Dung Beetle Survival;
Dung Beetles Important;
Eating Worms;
entomo-;
formic-;
Guinea worms;
helmintho-;
insecto-;
Insects: Importance;
larvi-;
lepidopter-;
meliss-;
mosquito;
Mosquito, other Languages;
Mosquitoes, Pt. 1;
Mosquitoes, Pt. 2;
myrmeco-;
scarab;
scoleco-;
sphec-;
taeni-;
termit-;
vermo-.
【同源单词】Isoptera, isopteran, isopterophobia, isopterous