Eusebeia (Greek: from "pious" from
eu meaning "well", and
sebas meaning "reverence", itself formed from
seb- meaning sacred awe and reverence especially in actions) is a Greek word abundantly used in Greek philosophy as well as in the
New Testament, meaning to perform the actions appropriate to the gods. The root
seb- is connected to danger and flight, and thus the sense of reverence originally described fear of the gods.