What words end with the prefix logy?

The word "logy" isn't a prefix, it's a suffix. It's used to form nouns that describe a particular field of study, a system of beliefs, or a specific branch of knowledge.

Here are some examples of words ending with "-logy":

* Biology: The study of life

* Psychology: The study of the mind and behavior

* Sociology: The study of society

* Geology: The study of the Earth

* Theology: The study of religion

* Physiology: The study of how living organisms function

* Zoology: The study of animals

* Astrology: The study of stars and their influence on human affairs

* Entomology: The study of insects

* Anthropology: The study of humans and their cultures

* Linguistics: The study of language

There are many more words ending in "-logy". Do you have any particular field of study in mind?