- -logy: λόγος (lógos, “explanation”) + -ῐ́ᾱ (-íā, abstract noun suffix)
- A branch of learning; a study of a particular subject.
- Speech, or a way of speaking, a narrative.
- -ics: related or pertaining to, with usage in the plural in imitation of the Latin and Greek usage.
- -graphy: From French -graphie, inherited from Latin -graphia, borrowed from Ancient Greek -γραφία
- Something written or otherwise represented in the specified manner, or about a specified subject.
- Field of study
- -y Forming nouns
- -ing Forming nouns
- Literature: etymology
- Philosophy: ethics, metaphysics, epistemology
- Performing arts
- Visual arts
- Mathematics: arithmetic, algebra, geometry, analysis
- Chemistry: neurochemistry
- Geology: geological dating, radiocarbon dating, fossil
- Oceanography: marine organisms, ecosystem dynamics, ocean currents, geophysical fluid dynamics, plate tectonics
- Biology: Physiology
- Biochemistry: Pharmacy
- Microbiology: microorganisms
- Communication studies
- Education: pedagogy
- Geography: recycling
- Law: ethics
- Linguistics: syntax, semantics, morphology, phonetics, phonology
- Political science
- Psychology: cognitive
- STEM: science, technology, engineering, mathematics