Etymology of the English word symmetry
the English word symmetry
derived from the Latin word symmetria (symmetry; due proportion between parts; relative measure of parts)
derived from the Greek word summetria, συμμετρία
derived from the Greek word metron, μέτρον (measure; a measure ('metre'), literally or figuratively; by implication, a limited portion (degree))
derived from the Proto-Indo-European root *me-
derived from the Proto-Indo-European root *mē-
derived from the Greek word sun, σύν (together; with or together ; by association, companionship, process, resemblance, possession, instrumentality, addition, etc.)
derived from the Greek word sum