-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.
A perinatologist logically could be an obstetrician or pediatrician, but in practice, a perinatologist is an obstetrician.
The comparable area of pediatrics is neonatology. A high-risk baby might be cared for by a perinatologist before birth and by a neonatologist after birth.
Since the perinatal period, depending on the definition, starts at the 20th to 28th week of gestation and ends one to four weeks after birth, perinatology logically could be an obstetrical and pediatric subspecialty, but in practice, it is part of obstetrics.
The comparable area of pediatrics is "neonatology". A high-risk baby might be cared for by a "perinatologist" before birth and by a "neonatologist" after birth.
2. Etymology: The word perinatology is a linguistic combination of the Greek peri-, "around" or "about" plus natal from the Latin natus, "born" plus ology from the Greek logos, "treatise" or "study of".
2. Etymology: from Greek, perissologos and from Latin perissologia, "speaking too much".
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2. Dietetic studies.