geo (geography, geode, geology)

equi (equation, equator)

hydr (hydrate, hydroelectric)

graph (geography, graphite)

mar (marine, marsh)

therm (thermometer, thermal)

super (superwoman, supernova, superior)

terr (territory, extraterrestrial)

sub (subway, submarine, subduction)

ign (ignite, igneous)

lith (lithosphere, lithograph)

meta (metamorphosis, metamorphic)

meter (diameter, thermometer)

lu, lum (luminous, luster)

morph (amorphous, metamorphosis)