=Aster= or =astron=, a star; astronomy, astrology, asteroid, disaster. =Atmos=, vapour; atmosphere. =Autos=, self; autocrat, autograph. =Ballo=, I throw; symbol. =Bapto=, I dip; baptise, baptist. =Baros=, weight; barometer. =Biblos=, a book; Bible, bibliomania. =Bios=, life; biography, biology. =Cheir=, the hand; surgeon [older form, chirurgeon]. =Chrio=, I anoint; Christ, chrism. =Cholē=, bile; melancholy. =Chronos=, time; chronology, chronic, chronicle. =Daktŭlos=, a finger; dactyl, pterodactyl, date--_the fruit_. =Deka=, ten; decagon, decalogue. =Dēmos=, the people; democrat, endemic, epidemic. =Dokeo=, to think; =doxa= and =dogma=, an opinion; doxology, orthodox, heterodox, dogma, dogmatic. =Drao=, I do; drama, dramatic. =Dunămis=, power; dynamics. =Eidos=, form; kaleidoscope. =Eikon=, an image: iconoclast. =Electron=, amber; electricity. =Ergon=, a work; surgeon [= chirurgeon], energy. =Eu=, well; eucharist, euphony, evangelist. =Gamos=, marriage; bigamy, monogamist, misogamy. =Gē=, the earth; geography, geometry, geology. =Gennao=, I produce; genesis, genealogy, hydrogen, oxygen. =Grapho=, I write; =gramma=, a letter; graphic, grammar, telegraph, biography, diagram. =Haima=, blood; hæmorrhage, hæmorrhoid. =Haireo=, I take away; heresy, heretic. =Helios=, the sun; helioscope, heliotype. =Hemi=, half; hemisphere. =Hieros=, sacred; hierarchy, hieroglyphic. =Hippos=, a horse; hippopotamus, hippodrome. =Hŏdos=, a way; method, period, exodus. =Hŏmos=, the same; homœopathy, homogeneous. =Hudor=, water; hydraulic, hydrophobia. =Ichthus=, a fish; ichthyology. =Idios=, one’s own; idiom, idiot, idiosyncrasy. =Isos=, equal; isochronous, isobaric (of equal weight). =Kalos=, beautiful; caligraphy, calotype. =Kephalē=, the head; hydrocephalus. =Klino=, I bend; climax, climate. =Kosmos=, order; cosmogony, cosmography, cosmetic. =Krino=, I judge; critic, criterion, hypocrite. =Kuklos=, a circle; cycle, cycloid, cyclone. =Kuon=, a dog; cynic, cynicism. =Lĕgo=, I say or choose; eclectic, lexicon. =Lithos=, a stone; lithograph, aerolite. =Lŏgos=, a word, speech; logic, dialogue, geology. =Luo=, I loosen; dialysis, analysis. =Metron=, a measure; metronome, diameter, thermometer, barometer. =Mŏnos=, alone; monastery, monogram, monosyllable. =Morphē=, shape; amorphous, dimorphous, metamorphic. =Naus=, a ship; nautical. =Nekros=, a dead body; necropolis, necromancy. =Nŏmos=, a law; autonomous, astronomy, Deuteronomy. =Oikos=, a house; economy, economical. =Onŏma=, a name; anonymous, synonymous, patronymic. =Optŏmai=, I see; optics, synoptical. =Orthos=, right; orthodoxy, orthography.