-logy - Dictionary Of English

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-logy [links] ⓘ One or more forum threads is an exact match of your searched term in Spanish | in French | in Italian | English synonyms | English Usage | Conjugator | in context | images WordReference Random House Learner's Dictionary of American English © 2025-logy, suffix.
  1. -logy comes from Greek, where it has the meaning "word.'' It is attached to roots to form nouns with the meanings: "field of study, discipline; list of'':astro- (= star) + -logy → astrology (= study of the influence of stars on events);bio- (= life) + -logy → biology (= study of living things).
See -log-. Collins Concise English Dictionary © HarperCollins Publishers:: -logy n combining form
  1. indicating the science or study of: musicology
  2. indicating writing, discourse, or body of writings: trilogy, phraseology, martyrology
Etymology: from Latin -logia, from Greek, from logos word; see logos-logical, -logic adj combining form -logist n combining form WordReference Random House Unabridged Dictionary of American English © 2025lo•gy (lō′gē),USA pronunciation adj., -gi•er, -gi•est.
  1. lacking physical or mental energy or vitality; sluggish; dull; lethargic.
  • Dutch log heavy, cumbersome + -y1
  • perh. 1840–50, American.
lo′gi•ly, adv. lo′gi•ness, n. -logy,
    1. a combining form used in the names of sciences or bodies of knowledge:paleontology; theology.
    2. a termination of nouns referring to writing, discourses, collections, etc.:trilogy; martyrology.
    • Greek. See -logue, -y3
    • Latin -logia
    • Middle English -logie
'-logy' also found in these entries (note: many are not synonyms or translations): amphibology - andrology - astrology - biocoenology - criminology - deltiology - doxology - duology - ecosystem - etymology - eulogy - garbology - meteorology - oenology - ology - palaeontology - palynology - patrology - phenology - psephology - pteridology - Scientology - semasiology - semiology - soteriology - teleology - tetralogy - thanatology - theology - thremmatology - trilogy - vexillology - acanthology - acarology - acrology - actinology - adenology - aerology - agriology - agrology - agrostology - alethiology - algology - anemology - anesthesiology - angelology - angiology - anthropology - antilogy - apiology

🗣️Forum discussions with the word(s) "-logy" in the title:

logey/logy logy drainage Suffix -logy, -oid The suffix "logy" Visit the English Only Forum.Help WordReference: Ask in the forums yourself. Look up "-logy" at Merriam-Webster Look up "-logy" at dictionary.com
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