Root Words
Root Words
Prefixes
Suffixes
Meanings by Roots
100

meter/metr Examples- thermometer, perimeter

What is "measure"

100

Ast/aster/astro Example-astrology, astronomy, astronaut 

What is "Star"

100

Anti-   Examples- antibiotic, anticlimax

What is "against" 

100

-ed Example- accomplished, accepted 

What is "past tense verbs"

100

Transfer

To carry across

200

cir/circum Examples: circumference, circumstance, circular

What is "around"

200

Hydr 

Example- hydration, dehydrate 

What is "Water"

200

Fore-   Examples- forehead, forecast

What is "in front of"

200

-ful Example- beautiful, hatefu 

What is "Full of"

200

photograph

to write with light

300

Graph, Examples: autograph, graphic 

What is "Write"

300

jud/jur/jus Examples- judge, jury

What is "law"

300

Tele-  Examples- telephone, television

What is "far"

300

-less. Example- thoughtless, heartless

what is "without"

300

interject

to throw between

400

Mal Examples: malfunction, malpractice, maleficence 

What is "bad"

400

bene Examples- benevolent, benefactor

What is "good"

400

in-, im-, il-, ir-  Examples- impossible, innocent

What is "not"

400

-ology Example- biology, meteorology

What is "the study of"

400

manuscript

written by hand

500

vid/vis Example- visual, video

What is "to see"

500

struct Examples- structure, construct

What is "build"

500

mis-  Examples- misspell, misuse

What is "bad, wrong"

500

-ify Example- amplify, justify 

What is "to make, have, become"

500

precede

to go before