語源を活用した語彙増強は日本人英語学習者のみならず世界中の英語学習者や、ネイテイブまでが行なっている方法である。英語はちょうど漢字のへんやつくりのように、スペ66" face="HG明朝E" size="+2">[ ] 外へ
ex- export, extend, exit

[ ] 〜から離れて
ab- abnormal, abortion, abduct, abject

[ ] わきへ
se- seduce, segregate, separate

[ ] まわりの
peri- perimeter, period, peripheral

cir- circle, circumscribe, circulate

[ ] 間の
inter- international, intersection, interview

[ ] 別の場所や状態へ
trans- translate, transform, transplant

[ ] 貫通して、完全に
per- percolate, perfect, perform

[ ] 突き抜けた
dia- diameter, diagnal, diachronic

３）程度や性質を表したもの

[ ] 主要な
pri- prime, prince, principle

[ ] 超越
super- superior, supersonic, superpower

hyper- hypertension, hyperactive

over- overconfident, overdrink, oversleep

[ ] 一緒に、似た
co- coeducational, coexist, cohabitate

con- contact, conclude, connect

com- common, compile, company

coll- college, collect, collide

sym- symphony, sympathy, symposium

syn- synonym, sychronize, syndrome

[ ] 同等の
iso- isobar, isometric, isosceles

equi- equal, equivalent, equilateral

４）数量を表したもの

[ ] 半分
semi- semifinal, semicircle, semicolon

[ ] 一つ
mono- monorail, monopoly, monologue

uni- uniform, unification, unilateral

sol- solo, sole, solitary

[ ] 二つ
bi- bilingual, bicycle, bilateral

du- dual, duplicate, duplex

[ ] 三つ
tri- triple, triangle, tricycle

[ ] 四つ
qua- quarter, quarterly, quart

[ ] 五つ
pent- pentagon, pentagram, pentahedron

[ ] 十
dec- decade, decathlon, December

[ ] 十分の一
deci- decimal, decimeter, decimal

[ ] 百
cent-　century, centimeter, centenary

[ ] 多数
multi-　　 multilateral, multilingual, multiply

poly-　　 Polynesia, polygamy, polytechnic

[ ] 大きい
mega-　　 megaton, megaphone, megalopolis

macro-　　 macroscope, macroeconomic, macrograph

[ ] 小さい
micro-　 microscope, microfilm, microphone

mini- miniskirt, minicar, miniature

mino- minor, minority

minu- minus, minute, minuia

[ ] 無、空
va- vacant, vacuum, vanish

neg- negate, negative, neglect

[ ] 全て
omni- omnibus, omnipotent, omnipresent

５）身体

[ ] 自身
auto- autobiography, automatic, automobile

[ ] 人
anthropo- anthropoid, anthropology, anthrophobia

[ ] 血
hemo- hemoglobin, hemophiliac, hemorrhoids

[ ] 手
manu- manual, manufacture, manuscript

[ ] 胃
gastro- gastralgia, gastritis, gastroenteritis

[ ] 心臓
cardi- cardiac, cardiograph, cardialgia

[ ] 腎臓
nephr- nephridium, nephritis, nephrosis

[ ] 肝臓
hepato- hepatic, hepatitis, hepatotoxin

[ ] 脳
cerebr- cerebellum, cerebrum, cerebritis

[ ] 歯
dent- dentist, dental, denture

接尾辞(suffix)

１）名詞を表す

[ ] 人物
-er teacher, examiner, employer

-ee employee, examinee, returnee

-or doctor, advisor, counselor

-ar liar

-ist artist, pianist, scientist

-cian musician, technician, technician

-ant accountant, attendant, giant

-ent agent, client, patient, recepient

[ ] 行為
-ion explanation, creation, conversation

-ment excitement, encouragement, improvement

[ ] 状態
-hood childhood, motherhood, brotherhood

-ship relationship, citizenship, friendship

-ness happiness, kindness, sadness

-ance appearance, assistance, hesitance

-ence competence, existence, insistence

-ency consistency, emergency, expectancy

[ ] 〜性
-ity similarity, identity, legality

[ ] 〜可能性
-bility acceptablity, reliability, possibility

[ ] 科学
-logy　　　 biology, psychology, technology

[ ] 〜炎
-itis cerebritis, sinusitis, tonsillitis

[ ] 〜主義
-ism socialism, communism, capitalism

２）動詞を表す

-en shorten, heighten, sharpen

-ize recognize, internationalize, memorize

-ify purify, intensify, classify

-ate separate, originate, formulate

３）形容詞を表す

[ ] 〜に関連した
-al international, natural, legal, imperial

[ ] 〜に関連した
-ary customary, elementary, legendary, secondary

[ ] 〜のような
-ish foolish, childish, bookish

-ic romatic, errotic, athletic

[ ] 〜でいっぱい
-ful beautiful, wonderful, hopeful

-ous famous, various, nervous

[ ] 〜が足りない
-less careless, useless, shameless, powerless

[ ] 〜を発生させる
-ive creative, negative, positive

[ ] 〜でおおわれた
-y dirty, skinny, smoky

[ ] 〜ができる
-able understandable, touchable, payable

-ible edible, tangible, credible

４）副詞を表す

-ly quickly, internationally, slowly

語根(root)

１）動作を表す

[ ] 動く
mob automobile, mobilize, mobilization

mot promote, demote, motive

mov move, movement, remove

[ ] 運ぶ
port export, import, deport

[ ] 来る
ven event, invent, prevent

[ ] 前進する
gress progress, regress, transgress

[ ] 送る
mit submit, permit, admit

[ ] 注ぐ
fuse confuse, refuse, transfuse

[ ] 押す press compress, oppress, suppress

pel compel, expel, propel

[ ] 押し開く
rupt bankrupt, corrupt, interrupt

[ ] 引く
tract attract, detract, retract

[ ] 伸ばす
tend attend, extend, pretend

[ ] 締める
strict strict, restrict, constrict

[ ] ひねる
tort distort, extort, contort

[ ] まわる
vert convert, divert, invert

verse adverse, reverse, converse

cycle recycle, motorcycle, bicycle

[ ] 投げる ject reject, project, inject

[ ] つるす pend depend, expend, suspend

[ ] 閉じる clude conclude, include, exclude

[ ] 置く pose propose, compose, expose

[ ] 立つ
stitute constitute, institute, substitute

sist consist, insist, persist

[ ] 建てる
struct construct, instruct, destruct

[ ] 保つ
tain attain, contain, detain

[ ] つかむ
ceive conceive, deceive, receive

cept accept, except, intercept

[ ] 印す
sign assign, consign, design

[ ] 殺す cide pesticide, suicide, homocide

[ ] 切る
sect section, bisect, insect

cise concise, precise, excise

[ ] 終える term term, terminate, terminal

２）感覚器に関係するもの

[ ] 感覚
sen sensitive, sensual, consent

path antipathy, pathetic, sympathy

pat compatible

[ ] 思考
intell intellectual, intelligent, intelligible

[ ] 話す
dict dictate, predict, contradict

[ ] 叫ぶ
claim exclaim, proclaim, reclaim

[ ] 声 voke invoke, provoke, revoke

[ ] 書く
scrib describe, inscribe, subscribe

scrip script, scripture

[ ] 見る spect respect, inspect, prospect, retrospect

[ ] 聴く audi audio, audit, audition, auditorium

[ ] 触れる
tach attach, attachment, detach

tact contact, intact

[ ] 生命
bio biology, biography, biotechnology

[ ] 発生
gen generate, genetic, genital

[ ] 身体
corp corporal, corpse, corporation

３）性質を表すもの

[ ] 強い
fort comfort, effort, fortify

[ ] 嬉しい
gra grateful, gratitute, congratulate

[ ] まっすぐ rect correct, direct, erect

[ ] 真実
ver veracious, verdict, verify

[ ] 法
leg legal, legislature, legitimate

[ ] 確実、承認
cert certain, certificate, certify

fid confident, infidel

４）人間社会に関するもの

[ ] 集団
soc society, sociology, socialism

[ ] 人々
pop popular, popularity, population

pub public, publish, republic

demo democracy, demography

[ ] 都市
cit citizen, city

civ civil, civilize

[ ] 統制
reg regime, reginal, regular

[ ] 自由
liber liberal, liberalize, liberty

[ ] 援助、保護
serve preserve, conserve, observe, reserve

[ ] 征服
vic convict, victory, victor

vinc convince, province

[ ] 計量
meter altimeter, barometer, thermometer

[ ] 書かれたもの
gram program, telegram, diagram

graph biograph, graphic, graphics

graphy geography, oceanography, calligraphy

[ ] 恐怖症
phobia　　 acrophobia, agoraphobia, anthropophobia