From Greek: logia Sample words for the root logy: archaeology, anthropology, astrology, ecology, etymology, geology, meteorology, microbiology, sociology, technology, psychology, analogy, chronology, ideology, methodology, mythology, philology, terminology, trilogy, apology, parapsychology, anthology, morphology, physiology, seismology, eulogy, tautology, theology, zoology, paleontology, entomology. Each word has meanings and examples. Click their buttons to get sentences selected from classic works and modern media.