WORD ORIGIN

Late Middle English via Old French logique and late Latin logica from Greek logikē (tekhnē) ‘(art) of reason’, from logos ‘word, reason’

aetiology,  an(a)esthesiologist,  analog(ous),  analogue,  analogy,  anthologise,  anthology,  anthropological(ly),  anthropologist,  anthropology,  antilog(arithm),  apologetic(ally),  apologia,  apologist,  apologise,  apology,  archaeological(ly),  arch(a)eologist,  arch(a)eology,  astrologer,  astrological,  astrology,  audiologist,  audiology,  bacteriological,  bacteriologist,  bacteriology,  biological(ly),  biologist,  biology,  biotechnological,  biotechnology,  campanologist,  campanology,  cardiologist,  cardiology,  catalog(ue),  chronological(ly),  chronology,  climatological,  climatologist,  climatology,  cosmological,  cosmologist,  cosmology,  criminological,  criminologist,  criminology,  cytology,  demonology,  demythologise,  dendrochronologist,  dendrochronology,  dendrologist,  dendrology,  dermatological,  dermatologist,  dermatology,  dialectologist,  dialectology,  dialog(ue),  doxology,  ecological(ly),  ecologist,  ecology,  Egyptologist,  Egyptology,  embryological,  embryologist,  embryplogy,  endocrinologist,  endocrinology,  enology,  entomological,  entomologist,  entomology,  epidemiological,  epidemiologist,  epidemiology,  epilog(ue),  epistemological(ly),  epistemology,  escapologist,  escapology,  eschatological,  eschatology,  ethnologic(al),  ethnologically,  ethnologist,  ethnology,  etiology,  etymological(ly),  etymologist,  etymology,  eulogistic,  eulogise,  eulogist(ic),  eulogy,  futurologist,  futurology,  genealogical(ly),  genealogist,  genealogy,  geological(ly),  geologist,  geology,  gerontological,  gerontologist,  gerontology,  graphologist,  graphology,  gyn(a)ecological,  gyna(e)cologist,  gyn(a)ecology,  h(a)ematological,  h(a)emotologist,  h(a)ematology,  histologist,  histology,  histopathology,  homologous,  horology,  hydrology,  iconology,  ideological(ly),  ideologue,  ideology,  illogical(ity),  illogically,  immunological,  immunology,  iridology,  kidology,  lexicology,  lithology,  -log,  logarithm(ic),  logarithmically,  -logic,  logical,  -logical,  logically,  logician,  -logist,  logistic(al),  logisticallly,  logistics,  logo,  logogram,  -logue,  -logy,  meteorological,  meteorologist,  meteorology,  methodological(ly),  methodology,  metrological,  metrology,  microbiological,  microbiologist,  microbiology,  mineralogical,  mineralogist,  mineralogy,  monologue,  morphological,  morphology,  morphologist,  musicologist,  musicology,  mycologist,  mycology,  mythological,  mythologise,  mythology,  nanotechnological,  nanotechnologist,  nanotechnology,  neologism,  neurobiological,  neurobiology,  neurological,  neurologist,  neurology,  neurophysiology,  non-biological,  nosology,  numerological,  numerology,  ondotologist,  odontology,  oenology,  -ologic,  -ological,  -ologist,  ology,  -ology,  oncologist,  oncology,  ontological,  ontology,  ophthalmologist,  ophthalmology,  ornithological,  ornithologist,  ornithlogy,  otolaryngology,  pal(a)eontologist,  pal(a)eontology,  parapsychology,  pathological(ly),  pathologist,  pathology,  penologist,  penology,  petrology,  pharmacological,  pharmacologist,  pharmacology,  phenology,  phenomenological,  phenomenology,  philological,  philologist,  philology,  phonological,  phonologist,  phonology,  phraseology,  phrenologist,  phrenology,  physiological(ly),  physiologist,  physiology,  prologue,  psephologist,  psephology,  psychological(ly),  psychologist,  psychology,  psychopathology,  radiologist,  radiology,  reflexologist,  reflexology,  rheumatology,  scatological,  scientologist,  Scientology,  seismological,  seismologist,  seismology,  sexologist,  sexology,  Sinologist,  Sinology,  sociological(ly),  sociologist,  sociology,  speleologist,  speleology,  syllogism,  syllogistic,  tautological(ly),  tautologous,  tautology,  technological(ly),  technologist,  technology,  teleological,  teleology,  terminological(ly),  terminology,  tetralogy,  theologian,  theological(ly),  theology,  topology,  toxicological,  toxicologist,  toxicology,  travelogue,  trichologist,  trichology,  trilogy,  typology,  ufology,  unapologetic(ally),  urological,  urologist,  urology,  venereological,  venereologist,  venereology,  virologist,  virology,  volcanology,  vulcanology,  zoological,  zoologist,  zoology
Only available upon request
Only available upon request
Only available upon request