The ...ology Quiz Book will help you build a versatile vocabulary through amusement. So what is an ...ology? Simply stated: An ...ology is a discipline of study--a science or other branch of knowledge--as indicated by having the ...ology suffix. The origin of the suffix appeared between1795-1805; extracted from words like biology, geology, theology where the element ...logy is preceded by -o-. Hence, we have ...ology. Each page contains one ...ology word. The word is followed by three definitions. It's your goal to select the word or sentence that correctly defines the ...ology word. Once you have selected a definition simply turn the page to view the answer. The ...ology word is defined. It is that simple. I hope you enjoy the journey. It is my ultimate goal for others to gain as much pleasure from wordsmithing as I do.