vita (vitamin, vital, viable)
life
demo (democracy, demographic, demography)
people
stereo (stereoscope, stereophonic, stereotype)
solid
ism (capitalism, pluralism, tribalism)
doctrine
cogn (recognize, cognition, incognito)
know
sur (surpass, surface, surname)
over
alter (alternative, alteration, alter ego)
other
astr (astronomy, astronomical, astrology)
star
dyna (dynamic, dynamite, dynasty)
power
chron (chronological, synchronize, chronic)
time
hyper (hyperactive, hyperextend, hyperbole)
over
luna (lunar, lunatic, lunate)
moon
octa (octagon, octometer, octave)
eight
gyro (gyroscope, gyre, gyration)
turn
contra (contradict, contraband, contrast)
against
geo (geography, geosphere, geology)
earth
helio (heliographic, heliotropic, heliocentric)
sun
thermo (thermometer, thermostat, thermocouple)
heat
tetra (tetrahedron, tetroxide, tetragon)
four
meter (millimeter, thermometer, octameter)
measure
scope (telescope, microscope, horoscope)
look
son (sonar, unison, supersonic)
sound
dec (decimal, decade, decimate)
ten
stell (stellar, constellation, interstellar)
star
amat (amateur, amorous, amity)
love