-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.

epistemology (s) (noun), epistemologies (pl)
A branch of philosophy that investigates the nature of knowledge, its presuppositions and, in particular, its foundations, scope, and its extent and validity.

Epistemology is the determination of what distinguishes justified beliefs from mere opinions.

epizoology (s) (noun) (no pl)
The study of the patterns of infectious disorders of animal groups; epizootiology: Part of Mary's studies at the university included epizoology, or scientific research regarding the frequency, distribution, and causation of diseases in an animal population.
epizootiology, epizootology (s) (noun) (no pl)
The science pertaining to the factors relating to the development and spread of animal disorders: Epizootiology deals with the frequency, distribution, and causation of diseases in an animal population.
A specialist in the science of desert life.
The study, or science, of desert life.
One who studies deserts.
The study of deserts.
eschatologist (s) (noun), eschatologists (pl)
1. Someone who has a belief in ultimate or final things; such as, death, the destiny of humanity, the Second Coming of Christ, or the Last Judgment.
2. A person who preaches about the last days; such as, death, resurrection, judgment, immortality, the end of the world, etc.
eschatology (s) (noun), eschatologies (pl)
1. A branch of theology that is concerned with the end of the world or of humankind.
2. A belief, or a doctrine, concerning ultimate or final things; such as, death, the destiny of humanity, or the Final Judgment of God.
3. A Christian term that means the study of the end of history from a religious perspective.

Christians of every age since the death of Jesus have been anxiously awaiting the second coming, and looking for advance signs of his return.

Anticipation was intensified as the last year of some centuries approached; particularly 1000 A.D. and 1500 A.D. It was also particularly intense just before the start of the year 2000. The anticipation subsided considerably on January 1, 2000; but it is still an expectation by many Christians.

According to Matthew 24:35-36, Jesus said that no one knows the exact date and time of the end of the world: "Heaven and earth shall pass away, but my words shall not pass away. But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only."

Despite these words, many Christians still have attempted to predict the year and month; but not necessarily the day and hour of the end.

eschatology of Jehovah's Witnesses
A belief that Jesus Christ has been ruling in heaven as king since 1914 (a date they believe was prophesied in Scripture), and that after that time a period of cleansing occurred, resulting in the selection of Jehovah's Witnesses by God to be his people in the year 1919.

They also believe that those who reject their message will be destroyed including those who willfully refuse to obey God and that such action will shortly take place at Armageddon, ensuring that the beginning of the new earthly society will be composed of willing subjects of that kingdom.

Study of the structure, physiology, and diseases of the esophagus.
esthematology (s) (noun), esthematologies (pl)
The science of the senses, the sense organs, and their functions: During her training to be a neurologist, Jennifer enrolled in several classes that taught about esthematology so she could understand the bodily organ senses more precisely.
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-.