Word Stems and Their Meanings

-ism

• doctrine

• belief

• theory

• practice

demo

• people

• animals

• places

• things

sur

• under

• over

• beside

• between

geo

• earth

• water

• fire

• air

octa

• six

• seven

• eight

• nine

gyro

• spin

• turn

• stop

• move

vita

• life

• death

• love

• happiness

alter

• change

• other

• similar

• different

stell

• star

• moon

• planet

• comet

cogn

• understand

• know

• forget

• ignore