Efthimios is of Greek origin, derived from the Greek word 'efthimos', which means 'most honorable' or 'most glorious'. It is a male given name that has been traditionally used within the Greek Orthodox community. The name Efthimios is composed of two elements: 'efthimos', meaning 'most', and '-imos', a suffix denoting state or condition. Thus, Efthimios could be translated as 'in a state of being most honorable' or 'being in a state of glory'. This name has been carried through generations in Greek families and is often given to males in honor of saints bearing the same name, such as Saint Efthimios the Great, who was a prominent bishop and theologian during the Byzantine Empire.
"The name Efthimios saw a peak in usage during the late 1970s with five births each year from 1976 to 1978, and experienced a resurgence recently with five births in 2015. Overall, there have been twenty-one babies named Efthimios since 1974."