From Eustorgius, the Latin form of the Greek name Εὐστόργιος (Eustorgios), which was from the word εὔστοργος (eustorgos) meaning "content", a derivative of εὖ (eu) meaning "good" and στέργω (stergo) meaning "to love, to be content". Saint Eustorgius was a 6th-century bishop of Milan.
