The word 'taxonomy' is a modern scientific coinage built directly from ancient Greek components. It combines taxis (arrangement, order) with -nomia (a system of laws or rules), literally meaning "the rules of arrangement". This term was first used systematically by the Swiss botanist Augustin Pyramus de Candolle in the early 19th century to describe the theoretical principles of biological classification. The logic is perfectly transparent: the word's construction mirrors its modern abstract meaning—a structured system of laws for ordering and naming organisms, extending later to other fields of knowledge.

Structure: tax (arrange) + onomy (system of laws/rules) - tax: From Greek taxis, meaning "arrangement, order". Its functional role is the core semantic root indicating the act of ordering or classifying. - onomy: From Greek -nomia, from nomos meaning "law, custom, management". Its functional role is a noun-forming suffix denoting a system or body of knowledge.