英語の接頭辞と接尾辞。

Base wordまたはRootにくっつく、頻出度の高いAffixes（接頭辞と接尾辞）をご紹介します。

これらを覚えると、効率的に語彙増強をしていくことが可能となります。

Prefix（接頭辞）	Meaning	Example
Ab-	away from	absent, abnormal
Ad-	to, toward	advance, addition
After-	Later, behind	aftermath, afterward
Anti-	against, opposed	antibiotic, antigravity
Auto-	self	automobile, autobiography
Be-	make	believe, belittle, befriend
Bi-	two	bicycle, biceps
Com, con, co-	with, together	commune, concrete
Contra-	against	contradict, contrary
De-	downward, undo, opposite	deflate, defect
Deci-	ten	decibels, decimal
Dis-	not, opposite of	dislike, distrust
E, ex-	out of, prior to	explain, expense
En, em-	in, into, cover	engage, employ
Extra-	outside	extravagant, extraterrestrial
Fore-	earlier, before	foreclose, foresee
Im-	not	impose, imply
In-	into, not	include, incurable
Inter-	between, among	interact, internal
Macro-	large	macroeconomics, macrotiotic
Magni-	great	magnify, magnificent
Mega-	huge	megaphone, megabucks
Mid-	middle	midway
Micro-	small	microscope, microbe
Mis-	wrongly	mistake, mislead, misfire
Non-	not	nonsense, nonviolent
Out-	more or better than others	outperform, outbid
Over-	above, beyond, over	overflow, overdue, overlook
Post-	after	postdate, postmark
Pre-	before, prior to	preheat, prehistoric, prefix
Pro-	in favor of	protest, protect
Re-	again	repeat, revise, return
Prefix	Meaning	Example
Sub-	under, beneath	submarine, subject
Super-	above, beyond	superior, supernatural
Tele-	for	telescope, telephone
Trans-	across	transfer, transit, transport
Tri-	three	tricycle, triangle
Un-	not	unknown, unjust, unkind
Ultra-	beyond	ultraviolet, ultrasuede
Under-	beneath, below	underneath, underline
Uni-	one, single	unicorn, uniform