Word Stems and Their Meanings

chron

• time

• space

• light

• energy

stell

• star

• moon

• planet

• comet

dyna

• energy

• force

• power

• strength

luna

• star

• planet

• moon

• comet

thermo

• light

• heat

• sound

• motion

-ism

• doctrine

• belief

• theory

• practice

stereo

• liquid

• gas

• solid

• plasma

amat

• hate

• love

• like

• ignore

cogn

• know

• forget

• ignore

• learn

octa

• six

• seven

• eight

• nine