现在，对很多英语学习者来说，通过词源学习单词已经成为一种常识，但是很多学习者却没有系统学习过词源。金东穆著的《必备单词15000学完就会用》适合准备TOEIC、TOEFL、GRE等各种英语考试、需要储备大量词汇的学习者。全书共2个章节。第1章由7节构成，整理了盎格鲁－撒克逊前缀、拉丁语前缀、希腊语前缀和表示数字的前缀。第2章是词根篇，共40节。按照罗马字母顺序排序，方便查找。首先介绍一些重要的词根，然后联系一些补充词根。每节约介绍12至15个词根。学习40节后，读者即可学到近15000个单词，并且对词源有一定的了解。

金东穆，先后毕业于美国马里兰大学和加州大学。20多年间，在首尔大学、延世大学、高丽大学、东亚日报等单位讲授基础英语（语法、词汇、阅读理解和写作）课程。著作有《Master TOEFL》《英语语法讲座》《英语阅读理解讲座》等外语类图书。

CHAPTER 1 PREFIX
1. ANGLO-SAXON PREFIX( I )
BE- BY- EN- FOR- FORE- MIS-
2. ANGLO PREFIXES( II )
OUT- OVER- UN- UNDER- UP- WITH-
3. LATIN PREFIXES( I )
AB- AD- AMBI- ANTE- POST- BENEMALE- CIRCUM- CON-
4 LATIN PREFIXES( II )
COUNTER-, CONTRA- DE- DIS- EX- EXTER-, EXTRA- ININTRA-, INTRO- ENTER-, INTER- OB- PRE-
5. LATIN PREFIXES( III )
PRE- PRO- RE-, RETRO- SE- SUB- SUR-, SUPER- SUPR- TRANS- INFER-,INFRA- ULTRA- PRIM-, PRIN-
6. GREEK PREFIXES
A-, ANA- ANTI- APO- AUTO- CACO- CATA- DIA- DYS- ECTO- ENDOEN-,EM- EXO- EO- ESO- EPI- EU- HYPER- HYPOHOLO-
HETERO- HOMO- MISO- PERI- PROTO- PSEUDOSYN- TELE-
7. NUMERICAL PREFIXEX
HALF ONE TWO THREE FOUR FIVE SIX SEVEN EIGHT Nine TEN HUNDERD THOUSAND MANY ALL
CHAPTER 2 ROOT
SECTTON 1
基本词根 ACT, AG ALI, ALITER
补充词根 AC, ACR, ACU ACRO AERO AESTHET AGOGUE AGON AGRO, AGRI ALB, ALP ALGIA ALI
SECTION 2
基本词根 AMOR ANIM
补充词根 ALT AMBLE ANCE, HANCE ANG, ANX ANDROS ANTHROPOS ANN, ENN APT, EPT AQUA ARGU
SECTION 3
基本词根 ARCHY ARCH BAN
补充词根 ARM ART ASPER ASTRO AUDI AUX, AUG AVI BALL BAR BAS
SECTION 4
基本词根 CAP, CAPT
补充词根 CEPHAL
基本词根 CEIVE, CEPT
补充词根 BAT BELL BIBE BIBLIOS BIOS BLANC BOL, BL BRACE BREV BURS
SECTION 5
基本词根 CAD CIDE
补充词根 CAL CAMP CAND, CENS CAR CARE, CURE CARN CAUSE, CUSE CAVE CELER CEL
SECTION 6
基本词根 CEDE, CESS CANT
补充词根 CELL CENS CENTER CERN CHARGE CAST, CHAST CHIRO CHROM CHRONO CINCT
SECTION 7
基本词根 CLUDE, CLOSE CORD, CARD
补充词根 CIRCULARI CITE CIVI CLAR CLAM, CLAIM CLIM CLIN COLL COL CONCH
SECTION 8
基本词根 CRACY CRE, CRET
补充词根 CORP COSMOS COVER CRIM, CULP CRIT, CRIS
CRUC, CRUX CRYPTOS, COND CUMB, CUMBE, CUB CULT CUSS, SEISM
SECTION 9
基本词根 CRED CUR, COUR
补充词根 DACTYLO DAMN DATE DEBT, DEBIT DEI, DIV DENT DERM, DERMAT DEXTER DIGN DI, DIURN
SECTION 10
基本词根 DEMO, DEMON DIC
补充词根 DOL DOM, DOMIN DON DORM DRESS DROM DUR DYNAM EGO EMPT, EMP
SECTION 11
基本词根 DOCT DUCERE EQUA, EQUI
补充词根 ERG, ERGY ERR ESCE ESS EV FACE FAN FARE FEND
SECTION 12
基本词根 FA FID
补充词根 FILL FIRM FIX FLAGR FLAT FLEXT, FLEX FLICK, FLICT FLORI FOLI FUND
SECTION 13
基本词根 FAC FICT
补充词根 FORT FRACT, FRAG, FRANG FRANC, FRANCE, FRANK FRONT FUG FOME GAL GAMOS GASTROS GEOS
SECTION 14
基本词根 FER FIN
补充词根 GLOB GON GORGE GRAM GRAPH GRAC,GRAT GRAV GREG HABIT, HAV HAP
SECTION 15
基本词根 FLU FROM
补充词根 HELIO HEMATO HERB HERE, HES HERIT HIBERN HYPNO IDENT IDIO IDOL
SECTION 16
基本词根 FUS GEN
补充词根 IGN INSUL ISO ITIS JUD JUR JUS JUVEN LABOR LAC, LACT
SECTION 17
基本词根 GER, GEST
补充词根 LAB LAST LATERAL LATRY LAV, LUV, LOT LEN, LENT LEPSY LEV LIBER, LIVER
SECTION 18
基本词根 GRAD, GRESS HUM, HOM
补充词根 LINQU,LICT LINGU LIQU LITER LONG LUD LYSIS MACRO MAGN MAJ
SECTION 19
基本词根 HOR HYDRO
补充词根 MAN MAND, MEND MANIA MAR MATER PATER MARC, MARK MAX, MINI MELAN MEL
SECTION 20
基本词根 JAC, JECT JOIN, JUNCT
补充词根 MED MEDI, MEDIC MEMO MEN, MENS MIN, MEN MENS, MEAS MENT MERCE MERG, MERS META
SECTION 21
基本词根 LAT LEG, LECT
补充词根 METER, METR MIGR MILIT MINISTER MIR MIX,MISC MODE MOL MONIT MONT
SECTION 22
基本词根 LOC LOCUT, LOQU LOGY, LOGUE
补充词根 MONY MORPH MORT, MORS MUN, MON MUT NAT NARCO NEB, NEPH NECR, NECRO NECT, NEX
SECTION 23
基本词根 LUC, LUMIN MAN, MANI, MANU
补充词根 NEG, NEGA NERV, NEURO NOC, NOX NOMY NORM NOTE NOUNCE, NUNC UNMBER, NUMER NUR(S), NUTRI OCUL
SECTION 24
基本词根 MISS, MIT MOB, MOV, MOT
补充词根 HOD, OD ODE ODOR, OL ONT OPER OPT OP OR ORD ORI, ORT
SECTION 25
基本词根 NAI, NAT NOM, NOMEN
补充词根 ORTHO OSS, OSTEO OV PAC PAN PART PASS PATH PED PAED, PED
SECTION 26
基本词根 NOV PAR
补充词根 PEL, PUL