-logy

 

 

What part of -logy would you like to go to?

 

 

 

-logy is a suffix in the English Language, used with words originally adapted from the Ancient Greek Language words ending in -λογία (-logia). The earliest English examples were anglicizations of the French -logie, which was in turn inherited from the Latin -logia.

 

It has two main senses in English:

  • a combining form used in the names of sciences or bodies of knowledge (e.g. theology or sociology)
  • the root word nouns that refer to kinds of speech, writing or collections of writing (e.g. eulogy or trilogy)

 

 

Etymology

 

In words of the type theology, the suffix is derived originally from -λογ- (-log-) (a variant of -λεγ-, -leg-), from the Greek verb λέγειν (legein, "to speak").  The suffix has the sense of "the character or department of one who speaks or treats of [a certain subject]", or more succinctly, "the study of [a certain subject]".

 

In words of the type trilogy, the "-logy" element is derived from the Greek noun λόγος (logos, "speech").  The suffix has the sense of "[a certain kind of] speaking or writing".

 

 

-logy versus -ology

 

In English names for fields of study, the suffix -logy is most frequently found preceded by the euphonic connective vowel o so that the word ends in -ology.  In these Greek words, the root is always a noun and -o- is the combining vowel for all declensions of Greek nouns. However, when new names for fields of study are coined in modern English, the formations ending in -logy almost always add an -o-, except when the root word ends in an "l" or a vowel, as in these exceptions: analogy, dekalogy, disanalogy, genealogy, genethlialogy, herbalogy (a variant of herbology), idealogy, mammalogy, mineralogy, paralogy, pentalogy, petralogy (a variant of petrology), tetralogy; elogy; antilogy, festilogy, trilogy; palillogy, pyroballogy; dyslogy; eulogy; and brachylogy.  Linguists sometimes jokingly refer to haplology as haplogy (subjecting the word haplology to haplology).

 

 

Additional usage as a suffix

 

Per metonymy, words ending in -logy are sometimes used to describe a subject rather than the study of it (e.g. technology). This usage is particularly widespread in medicine; for example, pathology is often used simply to refer to "the disease" itself (e.g. "We haven't found the pathology yet") rather than "the study of a disease".

 

Books, journals and treatises about a subject also often bear the name of this subject (e.g. Ecology [journal]).

 

When appended to other English words, the suffix can also be used humorously to create nonce words (e.g. beerology as "the study of beer", Wikiology as "the study of Wikipedia"). As with other classical compounds, adding the suffix to a initial word-stem derived from Greek or Latin may be used to lend grandeur or the impression of scientific rigor to humble pursuits, as in cosmetology ("the study of beauty treatment") or cynology ("the study of dog training").

 

 

Additional usage as a substantive

 

When used as a proper noun, Ology can refer to a particular series of fantasy books and fictional encyclopedias. These currently include Dragonology: The Complete Book of Dragons, Egyptology: Search for the Tomb of Osiris, Wizardology: The Book of the Secrets of Merlin, Pirateology: A Pirate Hunter's Companion, and Mythology: Greek Gods, Heroes, & Monsters.

 

 

Related Topics

 

Classical Compound

Suffixes

 

Source of this Article

 

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