What are they and why do we need to know them?

Alnjah JHS

Prefix - beginning

Root – main word

Suffix - ending

Alnjah JHS

What is a root word?• word you can add beginnings and ends to

Why look at root word?• helps find meanings of words

Alnjah JHS

What is a prefix?• word that has its own meaning• add to change meaning of

wordsAlnjah JHS

Prefix• pre-• un-• dis-• re-• mis-• im-• super-• under-

Meaning• before• not• not• again• not• not• large/

powerful• lower

Example• preschool• unhappy• dislike• rewrite• misunderstan

d• impossible• supermarket• underground

Alnjah JHS

What is a suffix?• group of letters attached to ends of

words• can indicate what part of speech the

word belongs • also changes meaning

Alnjah JHS

Suffix Making Example of Original Word

Example of Suffixed Word

-tion

noun

prepare preparation

-sion divide division

-er teach teacher

-ness kind kindness

-ment treat treatment

-able

adjective

comfort comfortable

-ous danger dangerous

-ive act active

-ful help helpful

-less help helpless

-y ease easy

-ize verb memory memorizeAlnjah JHS

Alnjah JHS