Which suffix means study of?

• A. -ology
• B. -graphy
• C. -graph
• D. -pathy

Answer: (A)

Suffix that means “study of” is -ology. It signals a field of study or science, naming what is being investigated, as in biology (study of life), cardiology (study and treatment of the heart), or psychology (study of the mind). The idea is that -ology marks the act of studying or the discipline itself.

The other endings have different roles: -ography denotes a process of recording or imaging (like radiography), -graph denotes an instrument or something that writes (like a cardiograph), and -pathy refers to disease or pathological condition (like neuropathy).