Common words:
* autotrophy: the ability to produce food from inorganic substances
* biology: the study of living organisms
* biography: an account of a person's life written by someone else
* calligraphy: the art of beautiful handwriting
* chemistry: the study of matter and its properties
* geography: the study of the Earth's surface and its features
* geology: the study of the Earth's physical structure and history
* morphology: the study of the forms of things, especially words and organisms
* philosophy: the study of fundamental questions about existence, knowledge, values, and reason
* photography: the art or process of capturing images using light
* phylogeny: the evolutionary history of a species or group of organisms
* psychology: the study of the mind and behavior
* zoology: the study of animals
Less common words:
* anthropomorphy: the attribution of human characteristics to animals or inanimate objects
* bibliophy: the love of books
* cryptography: the art of writing or solving codes
* dendrophy: the study of trees
* ethnography: the study of people and their cultures
* hydrophy: a plant that lives in water
* lithography: a printing process using a flat surface treated with ink
* necrophy: the study of death
* ornithophy: the study of birds
* paleophy: the study of ancient life, especially fossils
* physiography: the physical geography of a region
* taxophy: the classification of organisms
* topography: the arrangement of the natural and artificial features of an area
* zoophy: an animal that resembles a plant
This list provides a variety of examples, but there are many more words ending in "-phy" that are not listed here.