What does the suffix "-logy" refer to?

The suffix "-logy" originates from the Greek word "logia," which means "study of" or "science." It is commonly used in various disciplines to denote a field of study or a branch of knowledge. For example, "biology" refers to the study of life, and "psychology" refers to the study of the mind and behavior. This clear association with the concept of studying a specific subject makes the choice of "study of" the most accurate definition of the suffix "-logy."

The other options do not align with the established meaning of the suffix. "Loosening/Cutting" would relate more to terms like "lysis," while "small" is better represented by suffixes such as "-ule" or "-cle." The idea of "within/inside" can be related to prefixes like "intra-" or "endo-." Thus, recognizing the definition of "-logy" as "study of" is crucial for understanding its application in academic and scientific contexts.