What is the meaning of Systema?

A Russian martial art, first appearing in the 1990s, involving a wide variety of fighting styles, including hand-to-hand combat, grappling, knife-fighting and firearms (with the specific elements usually dictated by the individual school).

system

system

system

harmony

definite plural of system

definite plural of system

Pre-reform spelling (used until 1943 in Brazil and 1911 in Portugal) of sistema.

Source: wiktionary.org