active

The word 'active' entered English in the 14th century from Old French actif, which itself descended from Latin activus. The Latin term was derived from the verb agere, meaning "to do, to drive, to set in motion," a verb with deep Proto-Indo-European roots in the stem h₂eǵ-, signifying "to drive." The suffix -ivus was a productive Latin adjectival ending. Thus, the literal construction "having the quality of doing" evolved logically into the modern meanings describing someone or something that is energetic, operational, or grammatically performing an action. The journey from the concrete idea of driving cattle to the abstract concept of being engaged or functional showcases a classic semantic broadening.

Structure: act (do, drive) + ive (adjective-forming suffix) - act: From Latin actus (a doing, a driving), from the verb agere (to do, to drive, to lead). It functions as the core root conveying the sense of action or performance. - ive: A suffix of Latin origin (-ivus), used to form adjectives meaning "of, relating to, or tending to" the action of the root. It indicates a quality or propensity.