Learning Prefixes and Suffixes

Knowing the Greek and Latin roots of several prefixes and suffixes (beginning and endings attached to words) can also help us determine the meaning of words. Ante, for instance, means before, and if we connect bellum with belligerant to figure out the connection with war, we'll know that antebellum refers to the period before war. (In the United States, the antebellum period is our history before the Civil War.)

Prefixes showing quantity
	Meaning	Prefixes in English Words
	half	semiannual, hemisphere
	one	unicycle, monarchy, monorail
	two	binary, bimonthly, dilemma, dichotomy
	hundred	century, centimeter, hectoliter
	thousand	millimeter, kilometer
Prefixes showing negation
	without, no, not	asexual, anonymous, illegal, immoral, invalid, irreverent, unskilled
	not, absence of, opposing, against	nonbreakable, antacid, antipathy, contradict
	opposite to, complement to	counterclockwise, counterweight
	do the opposite of, remove, reduce	dehorn, devitalize, devalue
	do the opposite of, deprive of	disestablish, disarm
	wrongly, bad	misjudge, misdeed
Prefixes showing time
	before	antecedent, forecast, precede, prologue
	after	postwar
	again	rewrite, redundant
Prefixes showing direction or position
	above, over	supervise, supererogatory
	across, over	transport, translate
	below, under	infrasonic, infrastructure, subterranean, hypodermic
	in front of	proceed, prefix
	behind	recede
	out of	erupt, explicit, ecstasy
	into	injection, immerse, encourage, empower
	around	circumnavigate, perimeter
	with	coexist, colloquy, communicate, consequence, correspond, sympathy, synchronize

Authority for this table: The Little, Brown Handbook by H. Ramsay Fowler and Jane E. Aaron, & Kay Limburg. 6th ed. HarperCollins: New York. 1995. By permission of Addison-Wesley Educational Publishers Inc.

Suffixes, on the other hand, modify the meaning of a word and frequently determine its function within a sentence. Take the noun nation, for example. With suffixes, the word becomes the adjective national, the adverb nationally, and the verb nationalize.

See what words you can come up with that use the following suffixes.

• Typical noun suffixes are -ence, -ance, -or, -er, -ment, -list, -ism, -ship, -ency, -sion, -tion, -ness, -hood, -dom
  
• Typical verb suffixes are -en, -ify, -ize, -ate
  
• Typical adjective suffixes are -able, -ible, -al, -tial, -tic, -ly, -ful, -ous, -tive, -less, -ish, -ulent
• The adverb suffix is -ly (although not all words that end in -ly are adverbs—like friendly)