Easton's Bible Dictionary (1897)
The father who saves, probably the same as Sosipater, a kinsman of Paul (Rom. 16:21), a Christian of the city of Berea who accompanied Paul into Asia (Acts 20:4-6).
Smith's Bible Dictionary (1863)
(saviour of his father), son or Pyrrhus or Berea, was one of the companions of St. Paul on his return from Greece into Asia. (Acts 20:4) (A.D. 55.)
Hastings' Dictionary of the Bible (1898) & Schaff's Bible Dictionary
SOP'ATER (father saved), a Beranin who was Paul's companion. Acts 20:4.
Hitchcock's Bible Names (1869)
Sosipater, who defends the father