anthropo: Human: anthropology, philanthropy
astro: Star: astronomy, astronaut
auto: Self: autograph, automatic
bio: Life: biology, biography
chrono: Time: chronology, synchronize
cosmo: World or universe: cosmos, cosmopolitan
crat: Rule: democrat, aristocrat
cycl: Circle: bicycle, cyclone
demo: People: democracy, demographic
derm: Skin: dermatology, epidermis
dyna: Power: dynamic, dynamite
geo: Earth: geography, geology
gram: Written: telegram, diagram
graph: Write or draw: autograph, photograph
hydro: Water: hydrant, dehydrate
hyper: Over, beyond: hyperactive
hypo: Under: hypothermia, hypodermic
log: Word or study: dialogue, biology
logo: Word: logo, monologue
mega: Great, large: megaphone
meter: Measure: thermometer, diameter
micro: Small: microscope, microwave
mono: One: monologue, monorail
morph: Shape: metamorphosis, morph
neo: New: neologism, neon
nym: Name: synonym, antonym
ortho: Straight, correct: orthodontist
pan: All: panorama, pandemic
path: Feeling or disease: sympathy, pathology
phil: Love: philosophy, Philadelphia
phobia: Fear: claustrophobia, arachnophobia
phon: Sound: telephone, symphony
photo: Light: photograph, photosynthesis
poly: Many: polygon, polygamy
psych: Mind or soul: psychology
scope: Look at: telescope, microscope
syn: Together: synonym, synthesis
tele: Far: telephone, television
therm: Heat: thermometer, thermal
topo: Place: topography
zoo: Animal: zoology, zoo
techno: Skill or art: technology, technique
arch: Chief or rule: monarchy, architect
bibli: Book: bibliography, Bible
cardi: Heart: cardiac, cardiology
dec: Ten: decade, decagon
gen: Birth or kind: genesis, genetics
glossa: Tongue or language: glossary
hemo: Blood: hemoglobin
kine: Movement: kinetic, kinesiology
lith: Stone: monolith, lithograph
mania: Madness or craze: maniac, kleptomania
onym: Name: pseudonym, anonymous
pod: Foot: tripod, podiatrist
pyro: Fire: pyromaniac, pyre
pseudo: False: pseudonym
thesis: A placing: hypothesis, synthesis
tropo: Turn: tropical, heliotrope

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