eco-, oeco-, oec-

(Greek: house, household affairs [environment, habitat], home, dwelling; used in one extensive sense as, "environment")

1. Of or relating to the environment or to the science of ecology.
2. Relating to the wise use or beneficial management of natural resources and of the natural environment.
One who specializes in biological sciences that deal with the relationship between organisms and their environment.
ecology, oecology
1. The branch of the biological sciences that deals with the relationship between organisms and their environment, including their relationship with other organisms.
2. The science concerned with interactions between organisms and the environment on spatial scales ranging from parts of individuals to the biosphere as a whole.

Literally, ecology means the "study of houses". The word was coined as ökologie by Ernst Haeckel, a German zoologist, in the 1870’s, based on the Greek word oikos. Although this means “house”, Haeckel was using it in the wider sense as “dwelling, habitat”. It was adopted into English soon after its coinage, originally as oecology which is similar to a Latin form.

Ayto, page 193.

Ecology has been divided into four major sub fields:
  • Physiological ecology, concerned with interactions between individual organisms and the environment.
  • Population biology, the regulation of population growth and population size, and interactions among populations.
  • Community ecology, characteristics of the collective properties of the organisms in an area.
  • Ecosystem ecology, regulation of the flows of energy and material in terrestrial and aquatic ecosystems.
ecomania, eciomania
1. A morbid attitude toward the members of one’s family [domineering behavior at home and humility toward other persons in authority].
2. A pathological dislike of the members of one’s family often resulting in a feeling that one must get away from them.
ecomania, oikomania
In psychology, a mental attitude whereby one is hostile and domineering toward one’s own family but who is submissive to those in an outside authority.
The study of the relationship between the ecological relations of an individual and its morphology.
1. The branch of economics concerned with the application of mathematical economics to economic data by the use of statistical methods.
2. Of, or relating to, or characterized by, the application of mathematics to economic data or theories.
A student of, or specialist in, econometrics.
The branch of economics concerned with the application of mathematical economics to economic data by the use of statistical methods.
economic (adjective), more economic, most economic
1. Pertaining to the management of a household, or to the financial ordering of private affairs: In school, girls used to take classes in household economic matters; such as, learning how to cook, set the table, and how to sew!
2. Relating to the development and regulation of the material resources of a community or nation: Ted's town was almost in economic ruin because its finances were in desperate straits!
3. Concerning the production and distribution of material wealth; sometimes used as an equivalent to a political financial system, but more frequently with reference to practical and specific applications: The economic reforms planned by the new government for the country were more difficult to accomplish than anticipated.
Descriptive of earning, disriboution and using of money.
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The study or the social science of the production, distribution, and consumption of goods and services and with the theory and management of economies or economic systems which include material goods and financial resources.
1. One who manages a household; a housekeeper.
2. Someone who studies, works, or is an expert in the field of economics.
The action or process of economizing (force, material, etc.).
economy, oeconomy
1. The production and consumption of goods and services of a community regarded as a whole.
2. The prudent managing of resources to avoid extravagant expenditure or waste.
3. A saving or attempt to reduce expenditure.
4. Originally, the management of a household.
5. Current usage is sometimes a reference to that which is intended to be less expensive or to give better value.

The basic notion contained in the word economy is “household management”. It comes from Greek oikonomia, by way of French or Latin, and means the "steward of a household". This was a compound noun formed from oikos, "house" and nemein, “manage”. The original sense "household management" was extended into English. It broadened out in the 17th century to the management of a nation's resources, while the use of the derivative economics for the theoretical study of the creation and consumption of wealth dates from the early 19th century.

Ayto, page 193.
ecophobia, oecophobia, oikophobia (s) (noun); ecophobias, oecophobias, oikophobias (pl)
A morbid dislike of one's abode or an abnormal distrust or aversion of being in a house where he or she is living: There are some people who have ecophobia because of their home life or its surroundings, sometimes even including household appliances, equipment, electricity, bathtubs, household chemicals, or other common objects which make them feel terribly uncomfortable and insecure.
A strong hatred of one's home and/or its environment.
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Related "home; house" word units: domo-; ecdemo-; nosto-.