Latinized form of the Greek name
Εὐάριστος (Euaristos) meaning
"well pleasing" from the Greek word
εὐάρεστος (euarestos), derived from
εὖ (eu) meaning "good, well" and
ἀρεστός (arestos) meaning "pleasing". This was the name of the fifth pope, supposedly martyred under Emperor Hadrian.