The term teleology is a modern philosophical compound, constructed in the 18th century from two ancient Greek elements: telos (end, goal, purpose) and -logia (study, discourse). It entered English via German Teleologie, coined by the philosopher Christian Wolff. The word's logic is direct and literal: it is the "study of ends or purposes." This concept, central to Aristotelian philosophy, argues that natural phenomena and entities are best understood by the purposes or final causes they serve, rather than solely by efficient mechanical causes. Thus, the modern abstract meaning retains the core idea of its Greek components, applying them to systematic philosophical inquiry.

Structure: tele (end) + ology (study of) - tele: From Greek telos, meaning "end, purpose, completion." In this word, it functions as the core root conveying the concept of purpose or finality. - ology: From Greek -logia, meaning "the study of, a discourse." It functions as a suffix that forms nouns denoting a branch of knowledge or a science.