The name Erastus is a boy's name of Greek, Latin origin meaning "beloved". Erastus and is often added to lists like Bible Names for Boys and discussed in our forums with posts like "Themed Families..".
From the experts:
The Biblical Erastus was an assistant of Paul's in the New Testament. A name used in the 19th century that has fall off the scope, but may be revived as parents dig deeper for undiscovered Biblical choices.