Word.ws English Dictionary

-logy

Syllables: -lo·gy/-lə.d͡ʒi/

-logy suffix: a branch of learning; a study of a particular subject.

Suffix

-logy (noun-forming suffix, usually uncountable, plural -logies)

  1. (usually) A branch of learning; a study of a particular subject.
    • Examples: biology, geology, genealogy
    Synonyms:
    -ics, -istics, -lore, -s
  2. (usually) Speech, or a way of speaking, a narrative, logical discourse.
    • Examples: haplology, eulogy, trilogy, apology

-logy meaning in Urdu, Arabic, Malay and Vietnamese

-logy in Urdu

branch of learning
یات -iyāt

-logy in Arabic

branch of learning
ـلُوجِيَا -lūjiyā, عِلْم اَلـ ʕilm al--

-logy in Malay

branch of learning
kaji

-logy in Vietnamese

branch of learning
học
More languagesFewer languages
-logy in Myanmar
ဗေဒ beda.

Synonyms of -logy

Forms of -logy

plural-logies
alternative form-ology

Origin of -logy

The English -logy suffix originates with loanwords from the Greek, usually via Latin and French, where the suffix -λογία (-logía) is an integral part of the word loaned. E.g. astrology from astrologia, since the 16th century. The French -logie is a continuation of Latin -logia, ultimately from Ancient Greek -λογία (-logía). Within Greek, the suffix is an -ία (-ía) abstract from λόγος (lógos, “account, explanation, narrative”), itself a verbal noun from λέγω (légō, “to say, speak, converse, tell a story”). Within English, the suffix becomes productive, especially to form names of sciences or departments of study, analogous to names of disciplines loaned from the Latin, such as astrology from astrologia or geology from geologia. Original compositions of terms with no precedent in Greek or Latin become common beginning in the later 18th century, sometimes imitating French or German templates (e.g. insectology, attested 1766, after French insectologie; terminology, attested 1801, after German Terminologie). In a third stage, from the 19th century, the suffix becomes productive enough to form nonce combinations with English terms with no Greek or Latin origin, such as undergroundology...

Words formed from -logy

Questions about -logy

What does -logy mean?
-logy means a branch of learning; a study of a particular subject.
What is -logy in Urdu?
-logy in Urdu is یات (-iyāt). See -logy meaning in Urdu.
What part of speech is -logy?
-logy is a suffix.
How do you pronounce -logy?
-logy is pronounced /-lə.d͡ʒi/.

Words near -logy in the dictionary

  1. -logies
  2. -logist
  3. -logs
  4. -logue
  5. -logues
  6. -logy
  7. -long
  8. -loquy
  9. -lord
  10. -lucent
  11. -lukast

Source and license

Adapted from Wiktionary: -logy (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Persent101--logy.wav.

Cite this entry: “-logy.” Word.ws, https://word.ws/-logy. Based on Wiktionary, CC BY-SA 4.0.