-ology, -logy, -ologist, -logist

(Greek: a suffix meaning: to talk, to speak; a branch of knowledge; any science or academic field that ends in -ology which is a variant of -logy; a person who speaks in a certain manner; someone who deals with certain topics or subjects)

The word -ology is a back-formation from the names of certain disciplines. The -logy element basically means "the study of ____". Such words are formed from Greek or Latin roots with the terminal -logy derived from the Greek suffix -λογια (-logia), speaking, from λεγειν (legein), "to speak".

The suffix -ology is considered to be misleading sometimes as when the "o" is actually part of the word stem that receives the -logy ending; such as, bio + logy.

Through the years -ology and -logy have come to mean, "study of" or "science of" and either of these suffixes often utilize the form of -ologist, "one who (whatever the preceding element refers to)".

The examples shown in this unit represent just a small fraction of the many words that exist in various dictionaries.

1. The study of hair structure.
2. The science dealing with hair.

Loss of hair and thinning hair is usually a temporary condition that can affect both women and men. Balding is most often a hereditary condition that affects a large proportion of men. Alopecia is more serious hair loss, but all of these can be treated with hair replacement therapy and other tricology treatment.

Tricology is its own branch of science derived from beauty care (cosmetology) and dermatology.

1. The study of the process by which animals and plants assimilate and utilize exogenous substances for synthesis of new tissue and production of energy.
2. The study of the dietary requirements of human beings and other animals in a variety of normal and pathologic conditions.
tropology (s) (noun), tropologies (pl)
1. The use of figurative language in speech or in writing.
2. A figure of speech in which words or phrases are used with a nonliteral or figurative meaning.
typology (s) (noun), typologies (pl)
1. A doctrine, or theory that things in the Christian dispensation are symbolized or prefigured by things in the Old Testament: The Greek words which help people understand typology come under a verbal root that means "to beat, to strike, or to smite".

Usually the New Testament uses typology as a method of interpreting the Old Testament without explicitly saying so.

Typology, a comparison stressing one point of similarity, helps people to see the New Testament person, event, or institution as the fulfillment of that which was only hinted at in the Old Testament.

—Compiled from a presentation by Berkeley J. Mickelson;
Professor of New Testament Emeritus; Bethel Theological Seminary;
Saint Paul, Minnesota, USA; in the Holman Bible Dictionary;
General Editor, Trent Butler, Ph.D.; Holman Bible Publishers;
Nashville, Tennessee; 1991; pages 1377-1378.

2. The study of, or research based on classifications; such as, archeological remains or bacterial strains which are based on the comparative studies of categories.
3. The study of languages, or aspects of languages, regarding their structures rather than their historical relations.
4. The study, and especially, the analysis or division of humanity in terms of social distinctions or comparisons.
urban speleology
Also known as urban exploration, urbex, or UE; it is the examination of the normally unseen or off-limits parts of human civilization.

Urban exploration is also commonly referred to as infiltration, although some people consider infiltration to be more closely associated with the exploration of active or inhabited sites.

In the U.S.A., it may also be referred to as "draining" (when exploring drains) "urban spelunking", and "urban caving."

The branch of medicine concerned with the formation, composition, effects, and removal of urinary calculi or "stones".
Cross references of word families related directly, or indirectly, to: "talk, speak, speech; words, language; tongue, etc.": cit-; clam-; dic-; fa-; -farious; glosso-; glotto-; lalo-; linguo-; locu-; logo-; loqu-; mythico-; ora-; -phasia; -phemia; phon-; phras-; Quotes: Language,Part 1; Quotes: Language, Part 2; Quotes: Language, Part 3; serm-; tongue; voc-.