This document discusses commonly used suffixes in neurology. It provides examples of suffixes like "-esthesia", "-phasia", "-taxia", and "-paresis" and explains their meanings. Specifically, it defines "-esthesia" which means sensation and discusses the terms "anesthesia" meaning loss of sensation, and "paresthesia" meaning altered sensation. It also defines "-phasia" which refers to disorders of speech or language, and "-taxia" which describes lack of coordination. In summary, the document outlines key suffixes used in neurological conditions and diseases and explains their definitions and usages.