* Demos means "people" or "population".
* Graphein means "to write" or "to describe".
Therefore, "demography" literally means "the description of people" or "the study of populations".
The word was first used in the 18th century by the Belgian statistician Adolphe Quetelet, who is considered the father of modern demography. He used the term to describe his studies of the characteristics and trends of human populations.
The term "demography" is now widely used in the social sciences, economics, and public health to refer to the study of populations, including their size, composition, distribution, and change over time.